diff --git a/config/SOUE01/splits.txt b/config/SOUE01/splits.txt
index 0257f5fc..79b80620 100644
--- a/config/SOUE01/splits.txt
+++ b/config/SOUE01/splits.txt
@@ -323,7 +323,10 @@ d/d_stage_parse.cpp:
 d/d_sys.cpp:
 	.text       start:0x80064250 end:0x80064F28 align:16
 	.ctors      start:0x804DB694 end:0x804DB698
+	.rodata     start:0x804E0C98 end:0x804E0F18
+	.data       start:0x8050DE58 end:0x8050DF10
 	.sbss       start:0x80575228 end:0x80575248
+	.sdata2     start:0x80577928 end:0x80577930
 	.bss        start:0x805A0720 end:0x805A0778
 
 d/d_sys_init.cpp:
diff --git a/config/SOUE01/symbols.txt b/config/SOUE01/symbols.txt
index 17df3c55..29452858 100644
--- a/config/SOUE01/symbols.txt
+++ b/config/SOUE01/symbols.txt
@@ -552,7 +552,7 @@ create__3d2dFPQ23EGG4Heap = .text:0x80016630; // type:function size:0x58
 setLytAllocator__3d2dFv = .text:0x80016690; // type:function size:0xC
 fn_800166A0 = .text:0x800166A0; // type:function size:0x58
 create__3d3dFPQ23EGG4Heap = .text:0x80016700; // type:function size:0x160
-fn_80016860 = .text:0x80016860; // type:function size:0x28
+fn_80016860__3d3dFv = .text:0x80016860; // type:function size:0x28
 createLightTextures__3d3dFv = .text:0x80016890; // type:function size:0x98
 fn_80016930 = .text:0x80016930; // type:function size:0x2C
 worldToScreen__3d3dFR7mVec3_cRC7mVec3_c = .text:0x80016960; // type:function size:0x130
@@ -581,7 +581,7 @@ create3__Q23d3d13AnmMdlWrapperFR9dAcBase_cPvPvPCcPCcPQ33m3d5mdl_c13mdlCallback_c
 setAnm__Q23d3d14AnmMdlWrapper2FPCcQ23m3d10playMode_ef = .text:0x80017290; // type:function size:0xEC
 insertNode__3d3dFPQ23d3d12SomeListNodeff = .text:0x80017380; // type:function size:0xAC
 clearList__3d3dFv = .text:0x80017430; // type:function size:0xCC
-fn_80017500 = .text:0x80017500; // type:function size:0x1DC
+fn_80017500__3d3dFv = .text:0x80017500; // type:function size:0x1DC
 fn_800176E0 = .text:0x800176E0; // type:function size:0x10
 unk2__3d3dFRQ34nw4r3g3d6ResMatRQ34nw4r3g3d14ResMatTevColorP13ActorLighting = .text:0x800176F0; // type:function size:0x418
 setRoomTevColors__3d3dFQ34nw4r3g3d6ResMdlib = .text:0x80017B10; // type:function size:0x1D4
@@ -2780,10 +2780,10 @@ staticExecute__8dScene_cFv = .text:0x80062D00; // type:function size:0x68
 setRootActor__8dScene_cFQ28fProfile14PROFILE_NAME_eUlll = .text:0x80062D70; // type:function size:0x30
 __dt__8dScene_cFv = .text:0x80062DA0; // type:function size:0x5C scope:weak
 __sinit_\d_scene_cpp = .text:0x80062E00; // type:function size:0x3C scope:local
-fn_80062E40 = .text:0x80062E40; // type:function size:0x4
-fn_80062E50 = .text:0x80062E50; // type:function size:0x60
-fn_80062EB0 = .text:0x80062EB0; // type:function size:0x4
-fn_80062EC0 = .text:0x80062EC0; // type:function size:0x4
+fn_80062E40__6dStateFv = .text:0x80062E40; // type:function size:0x4
+fn_80062E50__6dStateFv = .text:0x80062E50; // type:function size:0x60
+fn_80062EB0__6dStateFv = .text:0x80062EB0; // type:function size:0x4
+fn_80062EC0__6dStateFv = .text:0x80062EC0; // type:function size:0x4
 handleBzsPcam__FiPC14BzsSectionHead = .text:0x80062ED0; // type:function size:0x1C scope:local
 handleBzsLyse__FiPC14BzsSectionHead = .text:0x80062EF0; // type:function size:0x20 scope:local
 handleBzsStif__FiPC14BzsSectionHead = .text:0x80062F10; // type:function size:0x54 scope:local
@@ -2826,9 +2826,9 @@ initAudioMgr__6dSys_cFPQ23EGG4Heap = .text:0x80064250; // type:function size:0xB
 beginRender__6dSys_cFv = .text:0x80064300; // type:function size:0x38
 endRender__6dSys_cFv = .text:0x80064340; // type:function size:0x18
 beginFrame__6dSys_cFv = .text:0x80064360; // type:function size:0x68
-EGG__ConfigurationData__onBeginFrame = .text:0x800643D0; // type:function size:0x4
+onBeginFrame__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x800643D0; // type:function size:0x4
 endFrame__6dSys_cFv = .text:0x800643E0; // type:function size:0x48
-EGG__ConfigurationData__onEndFrame = .text:0x80064430; // type:function size:0x4
+onEndFrame__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064430; // type:function size:0x4
 setBlack__6dSys_cFb = .text:0x80064440; // type:function size:0x80
 setFrameRate__6dSys_cFUc = .text:0x800644C0; // type:function size:0x10
 getFrameRate__6dSys_cFv = .text:0x800644D0; // type:function size:0x10
@@ -2836,18 +2836,18 @@ setClearColor__6dSys_cFQ34nw4r2ut5Color = .text:0x800644E0; // type:function siz
 getClearColor__6dSys_cFv = .text:0x80064540; // type:function size:0x14
 create__6dSys_cFv = .text:0x80064560; // type:function size:0x3BC
 setPosParam__Q23EGG14CoreControllerFff = .text:0x80064920; // type:function size:0x8
-EGG__TSystem__initialize = .text:0x80064930; // type:function size:0x1F4
+initialize__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064930; // type:function size:0x1F4
 execute__6dSys_cFv = .text:0x80064B30; // type:function size:0x268
 fixHeaps__7dSystemFv = .text:0x80064DA0; // type:function size:0xB8
 __sinit_\d_sys_cpp = .text:0x80064E60; // type:function size:0x34
-EGG__ConfigurationData__initRenderMode = .text:0x80064EA0; // type:function size:0x4
-getVideo__Q23EGG123TSystem<Q23EGG5Video,Q23EGG7Display,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EB0; // type:function size:0x8
-getSysHeap__Q23EGG123TSystem<Q23EGG5Video,Q23EGG7Display,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EC0; // type:function size:0x8
-getDisplay__Q23EGG123TSystem<Q23EGG5Video,Q23EGG7Display,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064ED0; // type:function size:0x8
-getXfbMgr__Q23EGG123TSystem<Q23EGG5Video,Q23EGG7Display,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EE0; // type:function size:0x8
-getPerfView__Q23EGG123TSystem<Q23EGG5Video,Q23EGG7Display,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EF0; // type:function size:0x14
-getSceneMgr__Q23EGG123TSystem<Q23EGG5Video,Q23EGG7Display,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064F10; // type:function size:0x8
-getAudioMgr__Q23EGG123TSystem<Q23EGG5Video,Q23EGG7Display,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064F20; // type:function size:0x8
+initRenderMode__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EA0; // type:function size:0x4
+getVideo__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EB0; // type:function size:0x8
+getSysHeap__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EC0; // type:function size:0x8
+getDisplay__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064ED0; // type:function size:0x8
+getXfbMgr__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EE0; // type:function size:0x8
+getPerfView__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064EF0; // type:function size:0x14
+getSceneMgr__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064F10; // type:function size:0x8
+getAudioMgr__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView>Fv = .text:0x80064F20; // type:function size:0x8
 fn_80064F30 = .text:0x80064F30; // type:function size:0x24
 fn_80064F60 = .text:0x80064F60; // type:function size:0x2C
 fn_80064F90 = .text:0x80064F90; // type:function size:0x30
@@ -8504,8 +8504,8 @@ fn_80152C30 = .text:0x80152C30; // type:function size:0xE8
 fn_80152D20 = .text:0x80152D20; // type:function size:0x54
 fn_80152D80 = .text:0x80152D80; // type:function size:0x5C
 create__18dLytSystemWindow_cFv = .text:0x80152DE0; // type:function size:0x3C
-fn_80152E20 = .text:0x80152E20; // type:function size:0xC8
-fn_80152EF0 = .text:0x80152EF0; // type:function size:0x8
+fn_80125E20__18dLytSystemWindow_cFv = .text:0x80152E20; // type:function size:0xC8
+fn_80125EF0__18dLytSystemWindow_cFv = .text:0x80152EF0; // type:function size:0x8
 fn_80152F00 = .text:0x80152F00; // type:function size:0x8
 fn_80152F10__18dLytSystemWindow_cFv = .text:0x80152F10; // type:function size:0x10
 setSelectBtn__18dLytSystemWindow_cFff = .text:0x80152F20; // type:function size:0x18
@@ -10250,8 +10250,8 @@ dAcOInsect_0xA4__12dAcOInsect_cFv = .text:0x80190660; // type:function size:0x8
 __dt__12dAcOInsect_cFv = .text:0x80190670; // type:function size:0xA0
 fn_80190710 = .text:0x80190710; // type:function size:0x14
 fn_80190730 = .text:0x80190730; // type:function size:0x48
-fn_80190780 = .text:0x80190780; // type:function size:0x40
-fn_801907C0 = .text:0x801907C0; // type:function size:0x4
+fn_80190780__15SaveTimeRelatedFPQ23EGG4Heap = .text:0x80190780; // type:function size:0x40
+fn_801907C0__15SaveTimeRelatedFv = .text:0x801907C0; // type:function size:0x4
 fn_801907D0__15SaveTimeRelatedFv = .text:0x801907D0; // type:function size:0x1C
 fn_801907F0__15SaveTimeRelatedFv = .text:0x801907F0; // type:function size:0x38
 fn_80190830 = .text:0x80190830; // type:function size:0x50
@@ -30885,10 +30885,13 @@ __vt__24daPlBaseScnObjCallback_c = .data:0x8050DDB8; // type:object size:0x20
 @4670 = .data:0x8050DDE8; // type:object size:0xB scope:local data:string
 __vt__8dScene_c = .data:0x8050DDF8; // type:object size:0x4C
 @23343 = .data:0x8050DE48; // type:object size:0xE scope:local data:string
-lbl_8050DE58 = .data:0x8050DE58; // type:object size:0x5C
-lbl_8050DEB4 = .data:0x8050DEB4; // type:object size:0xD data:string
-lbl_8050DEC4 = .data:0x8050DEC4; // type:object size:0xE data:string
-RootHeapsManager__EGG__T_System<>__Configuration__vtable = .data:0x8050DED4; // type:object size:0x3C
+@25556 = .data:0x8050DE58; // type:object size:0x11 scope:local data:string
+@25619 = .data:0x8050DE6C; // type:object size:0x15 scope:local data:string
+@25620 = .data:0x8050DE84; // type:object size:0x15 scope:local data:string
+@25621 = .data:0x8050DE9C; // type:object size:0x15 scope:local data:string
+@25756 = .data:0x8050DEB4; // type:object size:0xD scope:local data:string
+@25757 = .data:0x8050DEC4; // type:object size:0xE scope:local data:string
+__vt__Q23EGG129TSystem<Q23EGG5Video,Q23EGG12AsyncDisplay,Q23EGG10XfbManager,Q23EGG14SimpleAudioMgr,Q23EGG12SceneManager,Q23EGG15PerformanceView> = .data:0x8050DED4; // type:object size:0x3C
 lbl_8050DF10 = .data:0x8050DF10; // type:object size:0x18
 @9033 = .data:0x8050DF28; // type:object size:0x11 scope:local data:string
 @9034 = .data:0x8050DF3C; // type:object size:0x11 scope:local data:string
@@ -42202,8 +42205,8 @@ ms_RootHeapMem2__6dSys_c = .sbss:0x80575230; // type:object size:0x4 data:4byte
 s_OrgMEM1ArenaLo__7dSystem = .sbss:0x80575234; // type:object size:0x4 data:4byte
 s_NewMEM1ArenaLo__7dSystem = .sbss:0x80575238; // type:object size:0x4 data:4byte
 s_OrgMEM1ArenaHi__7dSystem = .sbss:0x8057523C; // type:object size:0x4 data:4byte
-s_NewMEM1ArenaHi__7dSystem = .sbss:0x80575240; // type:object size:0x8 data:4byte
-dSystem__myDylinkInitPhase = .sbss:0x80575248; // type:object size:0x8
+s_NewMEM1ArenaHi__7dSystem = .sbss:0x80575240; // type:object size:0x4 data:4byte
+myDylinkInitPhase__7dSystem = .sbss:0x80575248; // type:object size:0x8
 sInstance__18ArcCallbackHandler = .sbss:0x80575250; // type:object size:0x8 data:4byte
 aspectRatio = .sbss:0x80575258; // type:object size:0x4 align:4 data:float
 sInstance__8dCsMgr_c = .sbss:0x80575260; // type:object size:0x4 data:4byte
@@ -42664,7 +42667,7 @@ Ydchuff = .sbss:0x80575B60; // type:object size:0x8 data:4byte
 sm_numberMemo__10sStateID_c = .sbss:0x80575B68; // type:object size:0x4 data:4byte
 sAssertCallback__7sAssert = .sbss:0x80575B70; // type:object size:0x4 data:4byte
 m_gameFrame__10cCounter_c = .sbss:0x80575B78; // type:object size:0x4 data:4byte
-lbl_80575B7C = .sbss:0x80575B7C; // type:object size:0x4 data:4byte
+m_unkCounter__10cCounter_c = .sbss:0x80575B7C; // type:object size:0x4 data:4byte
 mFirst__24DynamicModuleControlBase = .sbss:0x80575B80; // type:object size:0x4 data:4byte
 mLast__24DynamicModuleControlBase = .sbss:0x80575B84; // type:object size:0x4 data:4byte
 sAllocBytes__20DynamicModuleControl = .sbss:0x80575B88; // type:object size:0x4 data:4byte
@@ -44186,8 +44189,8 @@ lbl_80577910 = .sdata2:0x80577910; // type:object size:0x4 align:4 data:float
 lbl_80577914 = .sdata2:0x80577914; // type:object size:0x4 align:4 data:float
 lbl_80577918 = .sdata2:0x80577918; // type:object size:0x4 align:4 data:float
 roomActivateHandlers = .sdata2:0x80577920; // type:object size:0x8 scope:local
-lbl_80577928 = .sdata2:0x80577928; // type:object size:0x4 align:4 data:float
-lbl_8057792C = .sdata2:0x8057792C; // type:object size:0x4 align:4 data:float
+@25622 = .sdata2:0x80577928; // type:object size:0x4 align:4 data:float
+@25623 = .sdata2:0x8057792C; // type:object size:0x4 align:4 data:float
 lbl_80577930 = .sdata2:0x80577930; // type:object size:0x8 align:8 data:double
 lbl_80577938 = .sdata2:0x80577938; // type:object size:0x8 align:8 data:double
 lbl_80577940 = .sdata2:0x80577940; // type:object size:0x4 align:4 data:float
diff --git a/include/d/d_sys.h b/include/d/d_sys.h
index 61135bc4..f8fbc979 100644
--- a/include/d/d_sys.h
+++ b/include/d/d_sys.h
@@ -2,11 +2,21 @@
 #define D_SYS_H
 
 #include "common.h"
+#include "egg/core/eggAsyncDisplay.h"
 #include "egg/core/eggHeap.h"
 #include "egg/core/eggSystem.h"
 #include "nw4r/ut/ut_Color.h"
 
-typedef EGG::TSystem<EGG::Video, EGG::Display, EGG::XfbManager, EGG::SimpleAudioMgr, EGG::SceneManager, EGG::PerformanceView> System;
+#define ROUND_UP_4KB(x) (((u32)(x) + 4096 - 1) & ~(4096 - 1))
+
+typedef EGG::TSystem<
+    EGG::Video,
+    EGG::AsyncDisplay,
+    EGG::XfbManager,
+    EGG::SimpleAudioMgr,
+    EGG::SceneManager,
+    EGG::PerformanceView
+> System;
 
 class dSndMgr_c;
 
@@ -38,6 +48,11 @@ public:
 
 namespace dSystem {
 
+void *s_OrgMEM1ArenaLo;
+void *s_NewMEM1ArenaLo;
+void *s_OrgMEM1ArenaHi;
+void *s_NewMEM1ArenaHi;
+
 void fixHeaps();
 
 };
diff --git a/include/egg/core/eggController.h b/include/egg/core/eggController.h
index a790b667..8dd447a4 100644
--- a/include/egg/core/eggController.h
+++ b/include/egg/core/eggController.h
@@ -346,6 +346,10 @@ public:
         sConnectCallback = cb;
     }
 
+    static void setWPADWorkSize(u32 size) {
+        sWPADWorkSize = size;
+    }
+
 private:
     CoreControllerMgr();
 
diff --git a/include/egg/core/eggDisplay.h b/include/egg/core/eggDisplay.h
index cdf2fe7a..986cfcda 100644
--- a/include/egg/core/eggDisplay.h
+++ b/include/egg/core/eggDisplay.h
@@ -58,6 +58,10 @@ public:
         mClearColor = color;
     }
 
+    u32 getClearZ() {
+        return mClearZ;
+    }
+
 public:
     static u32 sTickPeriod;
 };
diff --git a/include/egg/core/eggDvdFile.h b/include/egg/core/eggDvdFile.h
index ac36ae4e..6b511e2a 100644
--- a/include/egg/core/eggDvdFile.h
+++ b/include/egg/core/eggDvdFile.h
@@ -39,7 +39,7 @@ public:
     /* vt 0x24 */ virtual bool open(const char *path, void *);
 
 public:
-    void initialize();
+    static void initialize();
     DvdFile();
     void initiate();
     s32 sync();
diff --git a/include/egg/core/eggSystem.h b/include/egg/core/eggSystem.h
index 97682fa3..c1686d2e 100644
--- a/include/egg/core/eggSystem.h
+++ b/include/egg/core/eggSystem.h
@@ -2,31 +2,336 @@
 #define EGG_SYSTEM_H
 
 #include "common.h"
+#include "egg/core/eggController.h"
+#include "egg/core/eggDisplay.h"
+#include "egg/core/eggDvdFile.h"
 #include "egg/core/eggGraphicsFifo.h"
 #include "egg/core/eggHeap.h"
+#include "egg/core/eggVideo.h"
+#include "egg/core/eggXfbManager.h"
+#include "rvl/WPAD.h"
+#include "toBeSorted/d_exception.h"
 
-#include "rvl/SC.h"
+namespace {
 
-// Ported from https://github.com/snailspeed3/mkw/blob/master/lib/egg/core/eggSystem.hpp
+// TODO Determine better names (+ location?) for this render mode set
+
+const GXRenderModeObj gRMO_Unk1 = {
+    0, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    456, // xfbHeight
+    25, // viXOrigin
+    12, // viYOrigin
+    670, // viWidth
+    456, // viHeight
+    1, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk2 = {
+    2, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    456, // xfbHeight
+    25, // viXOrigin
+    12, // viYOrigin
+    670, // viWidth
+    456, // viHeight
+    0, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk3 = {
+    4, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    542, // xfbHeight
+    27, // viXOrigin
+    16, // viYOrigin
+    666, // viWidth
+    542, // viHeight
+    1, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk4 = {
+    20, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    456, // xfbHeight
+    25, // viXOrigin
+    12, // viYOrigin
+    670, // viWidth
+    456, // viHeight
+    1, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}      // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk5 = {
+    22, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    456, // xfbHeight
+    25, // viXOrigin
+    12, // viYOrigin
+    670, // viWidth
+    456, // viHeight
+    0, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk6 = {
+    0, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    456, // xfbHeight
+    17, // viXOrigin
+    12, // viYOrigin
+    686, // viWidth
+    456, // viHeight
+    1, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk7 = {
+    2, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    456, // xfbHeight
+    17, // viXOrigin
+    12, // viYOrigin
+    686, // viWidth
+    456, // viHeight
+    0, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk8 = {
+    4, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    542, // xfbHeight
+    19, // viXOrigin
+    16, // viYOrigin
+    682, // viWidth
+    542, // viHeight
+    1, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk9 = {
+    20, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    456, // xfbHeight
+    17, // viXOrigin
+    12, // viYOrigin
+    686, // viWidth
+    456, // viHeight
+    1, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const GXRenderModeObj gRMO_Unk10 = {
+    22, // tvInfo
+    608, // fbWidth
+    456, // efbHeight
+    456, // xfbHeight
+    17, // viXOrigin
+    12, // viYOrigin
+    686, // viWidth
+    456, // viHeight
+    0, // xfbMode
+    0, // field_rendering
+    0, // aa
+    {
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            {6, 6},
+            }, // sample_pattern
+    {0, 0, 21, 22, 21, 0, 0}  // vFilter
+};
+
+const EGG::Video::RenderModeObjSet gUnkRenderModeObjSet = {
+    {&gRMO_Unk1, &gRMO_Unk2, &gRMO_Unk3,
+     &gRMO_Unk4, &gRMO_Unk5, &gRMO_Unk6,
+     &gRMO_Unk7, &gRMO_Unk8, &gRMO_Unk9,
+     &gRMO_Unk10}
+};
+
+}
 
 namespace EGG {
 
-class Display;
-class Heap;
-class PerformanceView;
+// TODO Proper definition of PerformanceView
+class PerformanceView {
+public:
+    u8 placeholder[0x4c];
+    /* 0x4c */ u32 _4c;
+};
+
 class SceneManager;
 class SimpleAudioMgr;
-class Thread;
-class Video;
-class XfbManager;
 
-class BaseSystem {
+class ConfigurationData {
 public:
-    static BaseSystem *sSystem;
-
-public:
-    inline BaseSystem() : mSysHeapSize(0x97000), mGraphicsFifoSize(0x80000), mRenderMode(nullptr) {}
+    inline ConfigurationData() : mSystemHeapSize(0x89000) {}
 
+    // vtable at 0x0
     /* vt 0x08 */ virtual Video *getVideo() = 0;
     /* vt 0x0C */ virtual Heap *getSysHeap() = 0;
     /* vt 0x10 */ virtual Display *getDisplay() = 0;
@@ -42,34 +347,51 @@ public:
     /* vt 0x38 */ virtual void initialize() = 0;
 
 public:
-    /* 0x04 */ void *mMEM1ArenaLo;
-    /* 0x08 */ void *mMEM1ArenaHi;
-    /* 0x0C */ void *mMEM2ArenaLo;
-    /* 0x10 */ void *mMEM2ArenaHi;
-    /* 0x14 */ u32 mMemorySize;
+    /* 0x04 */ u32 mRoot1HeapStart;
+    /* 0x08 */ u32 mRoot1HeapEnd;
+    /* 0x0C */ u32 mRoot2HeapStart;
+    /* 0x10 */ u32 mRoot2HeapEnd;
+    /* 0x14 */ u32 mMemSize;
     /* 0x18 */ Heap *mRootHeapMem1;
     /* 0x1C */ Heap *mRootHeapMem2;
     /* 0x20 */ Heap *mRootHeapDebug;
-    /* 0x24 */ Heap *mSysHeap;
-    /* 0x28 */ Thread *mThread;
-    /* 0x2C */ void *_2c;
-    /* 0x30 */ void *_30;
-    /* 0x34 */ u32 mSysHeapSize;
-    /* 0x38 */ u32 mGraphicsFifoSize;
-    /* 0x3C */ GXRenderModeObj *mRenderMode;
+    /* 0x24 */ Heap *mSystemHeap;
+    /* 0x28 */ Thread *mSystemThread;
+    /* 0x2C */ u32 field_0x2C;
+    /* 0x30 */ u32 mSystemHeapStart;
+    /* 0x34 */ u32 mSystemHeapSize;
+};
+class BaseSystem {
+public:
+    static ConfigurationData *mConfigData;
+    
+    static XfbManager *getXfbMgr() {
+        return mConfigData->getXfbMgr();
+    }
+    static Display *getDisplay() {
+        return mConfigData->getDisplay();
+    }
+    static Video *getVideo() {
+        return mConfigData->getVideo();
+    }
 };
 
-template <class tVideo, class tDisplay, class tXfbMgr, class tAudioMgr, class tSceneMgr, class tPerfView>
-class TSystem : public BaseSystem {
+template <class TVideo, class TDisplay, class TXfbManager, class TAudioManager, class TSceneManager, class TPerfView>
+class TSystem : public ConfigurationData {
 public:
-    inline TSystem() : BaseSystem() {}
+    inline TSystem() : mGraphicsFifoSize(0x80000), mRenderMode() {}
+
+    void onBeginFrame() override {}
+    void onEndFrame() override {}
+
+    void initRenderMode() override {}
 
     Video *getVideo() override {
         return static_cast<Video *>(mVideo);
     }
 
     Heap *getSysHeap() override {
-        return mSysHeap;
+        return mSystemHeap;
     }
 
     Display *getDisplay() override {
@@ -81,7 +403,10 @@ public:
     }
 
     PerformanceView *getPerfView() override {
-        return static_cast<PerformanceView *>(mPerfView);
+        if (!mPerfView)
+            return mPerfView;
+        // TODO remove cast hack if/when more is known about PerformanceView
+        return static_cast<PerformanceView *>((void *)&mPerfView->_4c);
     }
 
     SceneManager *getSceneMgr() override {
@@ -92,55 +417,52 @@ public:
         return static_cast<SimpleAudioMgr *>(mAudioMgr);
     }
 
-    void onBeginFrame() override {}
-    void onEndFrame() override {}
-
-    void initRenderMode() override {}
-
     void initialize() override {
-        // DVDInit();
-        // SCInit();
+        DVDInit();
+        SCInit();
 
-        // initMemory();
-        // initRenderMode();
+        initMemory();
 
-        // GraphicsFifo::create(mGraphicsFifoSize, nullptr);
+        Heap *heap = Heap::sCurrentHeap;
 
-        // mVideo = new tVideo(mRenderMode, nullptr);
+        GraphicsFifo::create(mGraphicsFifoSize, heap);
+        mHeap::createAssertHeap(mRootHeapMem1);
 
-        // mXfbMgr = new tXfbMgr(nullptr);
-        // for (int i = 0; i < 2; ++i) {
-        //     mXfbMgr->attach(new Xfb(mRootHeapMem2));
-        // }
+        mVideo = new (heap) TVideo(&gUnkRenderModeObjSet);
 
-        // mDisplay = new tDisplay(1);
+        mXfbMgr = new (heap) TXfbManager();
+        for (int i = 0; i < 2; ++i) {
+            mXfbMgr->attach(new (heap) Xfb(mRootHeapMem2));
+        }
 
-        // Thread::initialize();
-        // mThread = new Thread(OSGetCurrentThread(), 4);
+        mDisplay = new (heap) TDisplay(1);
+        mDisplay->setClearColor(nw4r::ut::Color::BLACK);
+        mDisplay->clearEFB();
 
-        // mPerfView = new tPerfView(true);
+        Thread::initialize();
+        mSystemThread = new (heap) Thread(OSGetCurrentThread(), 4);
 
-        // DvdFile::initialize();
+        DvdFile::initialize();
 
-        // CoreControllerMgr::createStaticInstance();
-        // GCControllerMgr::createStaticInstance();
+        CoreControllerMgr::setWPADWorkSize(WPADGetWorkMemorySize() + 228);
+        CoreControllerMgr::createInstance();
 
-        // Exception_create(0x40, 0x20, 4, nullptr, 1);
+        exceptionCreate(heap);
 
-        // mSceneMgr = new tSceneMgr(nullptr);
+        BaseSystem::mConfigData->getSysHeap()->mFlag.setBit(0);
 
-        // mRootHeapMem1->becomeCurrentHeap();
-
-        // mAudioMgr = new tAudioMgr();
+        mHeap::setCurrentHeap(mHeap::g_assertHeap);
     }
 
 public:
-    /* 0x40 */ tAudioMgr *mAudioMgr;
-    /* 0x44 */ tVideo *mVideo;
-    /* 0x48 */ tXfbMgr *mXfbMgr;
-    /* 0x4c */ tDisplay *mDisplay;
-    /* 0x50 */ tPerfView *mPerfView;
-    /* 0x54 */ tSceneMgr *mSceneMgr;
+    /* 0x38 */ u32 mGraphicsFifoSize;
+    /* 0x3C */ GXRenderModeObj *mRenderMode;
+    /* 0x40 */ TAudioManager *mAudioMgr;
+    /* 0x44 */ TVideo *mVideo;
+    /* 0x48 */ TXfbManager *mXfbMgr;
+    /* 0x4c */ TDisplay *mDisplay;
+    /* 0x50 */ TPerfView *mPerfView;
+    /* 0x54 */ TSceneManager *mSceneMgr;
 };
 
 } // namespace EGG
diff --git a/include/egg/core/eggVideo.h b/include/egg/core/eggVideo.h
index cfaf7336..87ebaea4 100644
--- a/include/egg/core/eggVideo.h
+++ b/include/egg/core/eggVideo.h
@@ -20,7 +20,9 @@ public:
     /* 0x08 */ u32 mConfiguredTime;
 
 public:
-    Video() : pRenderMode(0), mFlag(), mConfiguredTime(){};
+    Video() : pRenderMode(0), mFlag(0), mConfiguredTime() {};
+    Video(const RenderModeObjSet *set) : pRenderMode(0), mFlag(0), mConfiguredTime() { initialize(nullptr, set); };
+
     void initialize(GXRenderModeObj *, const RenderModeObjSet *);
     GXRenderModeObj *configure(GXRenderModeObj *, const RenderModeObjSet *);
     static u32 getTickPerVRetrace(u32 tvFormat);
diff --git a/include/egg/core/eggXfbManager.h b/include/egg/core/eggXfbManager.h
index 76ba56dc..6291864e 100644
--- a/include/egg/core/eggXfbManager.h
+++ b/include/egg/core/eggXfbManager.h
@@ -15,6 +15,7 @@ public:
     /* 0xC */ u8 mNumXfbs;      // Total number of Xfbs ever attached
     /* 0xD */ u8 mNumXfbs_Copy; // Unsure of purpose yet, but showing wont proceed until its under 3
 public:
+    XfbManager() : mNextXfb(), mToCopyXfb(), mToShowXfb(), mNumXfbs(), mNumXfbs_Copy() {}
     bool isRegisterd(Xfb &xfb) const; // yes. this is correct spelling
     bool attach(Xfb *xfb);
     void copyEFB(bool);
diff --git a/include/rvl/WPAD/WPAD.h b/include/rvl/WPAD/WPAD.h
index 669874ee..0a36fd74 100644
--- a/include/rvl/WPAD/WPAD.h
+++ b/include/rvl/WPAD/WPAD.h
@@ -571,6 +571,7 @@ BOOL WPADStopSimpleSync(void);
 BOOL WPADCancelSyncDevice(void);
 WPADSimpleSyncCallback *WPADSetSimpleSyncCallback(WPADSimpleSyncCallback *cb);
 void WPADRegisterAllocator(WPADAllocFunc *alloc, WPADFreeFunc *free);
+u32 WPADGetWorkMemorySize(void);
 WPADLibStatus WPADGetStatus(void);
 u8 WPADGetRadioSensitivity(WPADChannel chan);
 void WPADGetAddress(WPADChannel chan, BD_ADDR_PTR addr);
diff --git a/src/d/d_sys.cpp b/src/d/d_sys.cpp
index 8e0cd984..c0315dd9 100644
--- a/src/d/d_sys.cpp
+++ b/src/d/d_sys.cpp
@@ -49,10 +49,33 @@ System *dSys_c::ms_configuration_p;
 EGG::Heap *dSys_c::ms_RootHeapMem1;
 EGG::Heap *dSys_c::ms_RootHeapMem2;
 
-char *dummy = "オーディオヒープ"; // "Audio heap"
 extern u32 lbl_80574FA0;
 extern u32 lbl_80574FA4;
 
+dSndMgr_c *dSys_c::initAudioMgr(EGG::Heap *heap) {
+    dSndMgr_c *audioMgr;
+
+    EGG::FrmHeap *frmHeap = mHeap::createFrmHeap(
+        0x69400,
+        heap,
+        "オーディオヒープ",  // "Audio heap"
+        32,
+        mHeap::OPT_NONE
+    );
+
+    {
+        mHeap temp(frmHeap);
+
+        audioMgr = new dSndMgr_c();
+        ms_configuration_p->mAudioMgr = audioMgr;
+
+        frmHeap->adjust();
+        frmHeap->mFlag.setBit(0);
+    }
+
+    return audioMgr;
+}
+
 void dSys_c::beginRender() {
     m3d::calcMaterial();
     ms_configuration_p->mDisplay->beginRender();
@@ -66,7 +89,7 @@ void dSys_c::beginFrame() {
     EGG::Display *pDisplay = ms_configuration_p->mDisplay;
 
     pDisplay->beginFrame();
-    GXSetCopyClear(pDisplay->mClearColor, pDisplay->mClearZ);
+    GXSetCopyClear(pDisplay->getClearColor(), pDisplay->getClearZ());
     ms_configuration_p->onBeginFrame();
 }
 
@@ -78,7 +101,7 @@ void dSys_c::endFrame() {
 bool dSys_c::setBlack(bool on) {
     EGG::Display *pDisplay = ms_configuration_p->mDisplay;
 
-    EGG::Video *pVideo = EGG::BaseSystem::sSystem->getVideo();
+    EGG::Video *pVideo = EGG::BaseSystem::getVideo();
 
     if (pVideo->mFlag.onBit(0) != on && pDisplay->mScreenStateFlag.offBit(0)) {
         pDisplay->mScreenStateFlag.setBit(0);
@@ -97,7 +120,8 @@ u8 dSys_c::getFrameRate() {
 }
 
 void dSys_c::setClearColor(nw4r::ut::Color clr) {
-    ms_configuration_p->mDisplay->setClearColor(clr);
+    EGG::Display *display = ms_configuration_p->mDisplay;
+    display->setClearColor(clr);
     EGG::StateGX::s_clearEfb = clr;
 }
 
@@ -114,15 +138,15 @@ void dSys_c::create() {
     dHeapAllocator::initCallbacks();
 
     ms_configuration_p = &SysConfig;
-    EGG::BaseSystem::sSystem = &SysConfig;
+    EGG::BaseSystem::mConfigData = &SysConfig;
 
     ms_configuration_p->initialize();
 
-    pRootHeapMem1 = EGG::BaseSystem::sSystem->mRootHeapMem1;
+    pRootHeapMem1 = EGG::BaseSystem::mConfigData->mRootHeapMem1;
     ms_RootHeapMem1 = mHeap::createExpHeap(-1, pRootHeapMem1, "dSys_c::RootHeapMEM1", 32, mHeap::OPT_4);
     pRootHeapMem1->mFlag.setBit(0);
 
-    pRootHeapMem2 = EGG::BaseSystem::sSystem->mRootHeapMem2;
+    pRootHeapMem2 = EGG::BaseSystem::mConfigData->mRootHeapMem2;
     ms_RootHeapMem2 = mHeap::createExpHeap(-1, pRootHeapMem2, "dSys_c::RootHeapMEM2", 32, mHeap::OPT_4);
     pRootHeapMem2->mFlag.setBit(0);
 
@@ -221,8 +245,7 @@ void dSys_c::create() {
     LayoutArcManager::create(pExpHeap);
 
     setFrameRate(1);
-    nw4r::ut::Color clearColor(nw4r::ut::Color::BLACK);
-    setClearColor(clearColor);
+    setClearColor(nw4r::ut::Color::BLACK);
 
     SaveTimeRelated::fn_80190780(pExpHeap);
 
@@ -345,10 +368,29 @@ void dSys_c::execute() {
     endFrame();
 }
 
-namespace dSystem {
+void dSystem::fixHeaps() {
+    s_OrgMEM1ArenaLo = OSGetMEM1ArenaLo();
 
-void fixHeaps() {
-
-}
+    void *stack_addr = (void *)OSRoundUp32B(_stack_addr);
+    void *arena_lo = (void *)OSRoundUp32B(__ArenaLo);
+    
+    if (s_OrgMEM1ArenaLo < (void *)0x80700000) {
+        s_NewMEM1ArenaLo = (void *)0x80700000;
+    }
+    else {
+        s_NewMEM1ArenaLo = (void *)ROUND_UP_4KB(arena_lo);
 
+        if (s_OrgMEM1ArenaLo != stack_addr && s_OrgMEM1ArenaLo != arena_lo) {
+            OSPanic("d_system.cpp", 1883, "Arena Error!\n");
+        }
+    }
+
+    OSSetMEM1ArenaLo(s_NewMEM1ArenaLo);
+
+    s_OrgMEM1ArenaHi = OSGetMEM1ArenaHi();
+    s_NewMEM1ArenaHi = (void *)0x817E0000;
+
+    if (s_OrgMEM1ArenaHi > s_NewMEM1ArenaHi) {
+        OSSetMEM1ArenaHi(s_NewMEM1ArenaHi);
+    }
 }