diff --git a/config/eur/arm9/overlays/ov000/symbols.txt b/config/eur/arm9/overlays/ov000/symbols.txt
index 398a48be..3323a223 100644
--- a/config/eur/arm9/overlays/ov000/symbols.txt
+++ b/config/eur/arm9/overlays/ov000/symbols.txt
@@ -520,7 +520,7 @@ _ZN10MapManager18func_ov00_020826a0Eiii kind:function(arm,size=0x20) addr:0x2082
 _ZN10MapManager9CreateMapEiii kind:function(arm,size=0x100) addr:0x20826c0
 _ZN10MapManager10DestroyMapEv kind:function(arm,size=0x30) addr:0x20827c0
 _ZN10MapManager16MapData_vfunc_44Ev kind:function(arm,size=0x18) addr:0x20827f0
-_ZN10MapManager18func_ov00_02082808Eiii kind:function(arm,size=0xb8) addr:0x2082808
+_ZN10MapManager18func_ov00_02082808Ei kind:function(arm,size=0xb8) addr:0x2082808
 _ZN10MapManager16MapData_vfunc_7cEv kind:function(arm,size=0x20) addr:0x20828c0
 _ZN10MapManager16MapData_vfunc_84Ei kind:function(arm,size=0x18) addr:0x20828e0
 _ZN10MapManager18func_ov00_020828f8EPi kind:function(arm,size=0x10) addr:0x20828f8
@@ -861,7 +861,7 @@ func_ov000_0208cb84 kind:function(arm,size=0x4c) addr:0x208cb84
 func_ov000_0208cbd0 kind:function(arm,size=0x84) addr:0x208cbd0
 func_ov000_0208cc54 kind:function(arm,size=0x10) addr:0x208cc54
 func_ov000_0208cc64 kind:function(arm,size=0x24) addr:0x208cc64
-func_ov000_0208cc88 kind:function(arm,size=0x54) addr:0x208cc88
+_Z19func_ov000_0208cc88Pi kind:function(arm,size=0x54) addr:0x208cc88
 func_ov000_0208ccdc kind:function(arm,size=0x10) addr:0x208ccdc
 func_ov000_0208ccec kind:function(arm,size=0x10) addr:0x208ccec
 func_ov000_0208ccfc kind:function(arm,size=0x10) addr:0x208ccfc
diff --git a/config/usa/arm9/overlays/ov000/symbols.txt b/config/usa/arm9/overlays/ov000/symbols.txt
index eb21ced8..45d10fa7 100644
--- a/config/usa/arm9/overlays/ov000/symbols.txt
+++ b/config/usa/arm9/overlays/ov000/symbols.txt
@@ -520,7 +520,7 @@ _ZN10MapManager18func_ov00_020826a0Eiii kind:function(arm,size=0x20) addr:0x2082
 _ZN10MapManager9CreateMapEiii kind:function(arm,size=0x100) addr:0x2082660
 _ZN10MapManager10DestroyMapEv kind:function(arm,size=0x30) addr:0x2082760
 _ZN10MapManager16MapData_vfunc_44Ev kind:function(arm,size=0x18) addr:0x2082790
-_ZN10MapManager18func_ov00_02082808Eiii kind:function(arm,size=0xb8) addr:0x20827a8
+_ZN10MapManager18func_ov00_02082808Ei kind:function(arm,size=0xb8) addr:0x20827a8
 _ZN10MapManager16MapData_vfunc_7cEv kind:function(arm,size=0x20) addr:0x2082860
 _ZN10MapManager16MapData_vfunc_84Ei kind:function(arm,size=0x18) addr:0x2082880
 _ZN10MapManager18func_ov00_020828f8EPi kind:function(arm,size=0x10) addr:0x2082898
@@ -861,7 +861,7 @@ func_ov000_0208cb84 kind:function(arm,size=0x4c) addr:0x208cb24
 func_ov000_0208cbd0 kind:function(arm,size=0x84) addr:0x208cb70
 func_ov000_0208cc54 kind:function(arm,size=0x10) addr:0x208cbf4
 func_ov000_0208cc64 kind:function(arm,size=0x24) addr:0x208cc04
-func_ov000_0208cc88 kind:function(arm,size=0x54) addr:0x208cc28
+_Z19func_ov000_0208cc88Pi kind:function(arm,size=0x54) addr:0x208cc28
 func_ov000_0208ccdc kind:function(arm,size=0x10) addr:0x208cc7c
 func_ov000_0208ccec kind:function(arm,size=0x10) addr:0x208cc8c
 func_ov000_0208ccfc kind:function(arm,size=0x10) addr:0x208cc9c
diff --git a/include/Map/Course.hpp b/include/Map/Course.hpp
index e1aa4210..9ca6c5b5 100644
--- a/include/Map/Course.hpp
+++ b/include/Map/Course.hpp
@@ -35,7 +35,7 @@ public:
     /* 01c */ Vec2b mCurrMapPos; // position in the map grid
     /* 01e */ unk8 mUnk_01e;
     /* 01f */ unk8 mUnk_01f;
-    /* 020 */ unk8 mMapGrid[10][10];
+    /* 020 */ u8 mMapGrid[10][10];
     /* 084 */ Vec2b mMainGrid; // part of the grid where you can walk off screen to another map
     /* 086 */ Vec2b mMainGridSize;
     /* 088 */ s32 mScreenMapOffsetX;
@@ -44,7 +44,7 @@ public:
     /* 094 */ unk32 mUnk_094;
     /* 098 */ AABB mBounds;
     /* 0b0 */ u8 mNumMaps;
-    /* 0b1 */ unk8 mUnk_0b1;
+    /* 0b1 */ u8 mUnk_0b1;
     /* 0b2 */ unk8 mUnk_0b2;
     /* 0b3 */ unk8 mUnk_0b3;
     /* 0b4 */ unk32 mUnk_0b4;
diff --git a/include/Map/MapManager.hpp b/include/Map/MapManager.hpp
index ac0168eb..fa468d1e 100644
--- a/include/Map/MapManager.hpp
+++ b/include/Map/MapManager.hpp
@@ -72,7 +72,7 @@ public:
     void CreateMap(unk32 mapType, unk32 param_3, unk32 param_4);
     void DestroyMap();
     void MapData_vfunc_44();
-    void func_ov00_02082808(s32 param_2, unk32 param_3, unk32 param_4);
+    void func_ov00_02082808(s32 param_2);
     void MapData_vfunc_7c();
     void MapData_vfunc_84(unk32 param_2);
     bool func_ov00_020828f8(s32 *param_2);
@@ -85,7 +85,7 @@ public:
     u8 func_ov00_02082d08();
     u8 GetCurrentMapPosX();
     u8 GetCurrentMapPosY();
-    unk8 func_ov00_02082d40();
+    u8 func_ov00_02082d40();
     u32 func_ov00_02082d74(unk32 param_2);
     void func_ov00_02082d84(unk8 *param_2, s32 *param_3, s32 *param_4);
     bool func_ov00_02082e1c(s32 *param_2, s32 *param_3);
diff --git a/src/00_Core/Map/MapManager.cpp b/src/00_Core/Map/MapManager.cpp
index 683c37a3..feb89ddf 100644
--- a/src/00_Core/Map/MapManager.cpp
+++ b/src/00_Core/Map/MapManager.cpp
@@ -3,6 +3,10 @@
 #include "Actor/ActorManager.hpp"
 #include "Player/PlayerBase.hpp"
 
+extern void func_ov000_0208cc88(s32 *param1);
+
+extern s32 *data_027e0f68;
+
 ARM void MapManager::GetCourseDungeonProgress(CourseProgress *param_2) {
     this->mCourse->GetDungeonProgress(param_2);
 }
@@ -300,7 +304,7 @@ ARM void MapManager::MapData_vfunc_44() {
     this->mMap->vfunc_44();
 }
 
-ARM void MapManager::func_ov00_02082808(s32 param_2, unk32 param_3, unk32 param_4) {
+ARM void MapManager::func_ov00_02082808(s32 param_2) {
     // How to define PTR_027e0d38 ?
     // if (*(int*)(*(int*)PTR_027e0d38 + 0x14) == 1) {
     //    return;
@@ -312,13 +316,13 @@ ARM void MapManager::func_ov00_02082808(s32 param_2, unk32 param_3, unk32 param_
         if (var1 == var2) {
             return;
         }
-        // func_ov00_020d70a4(DWORD_overlay_d_0_bss__020eec68, var1, 0, 0x7f, param_4); // And these?
+        // func_ov00_020d70a4(DWORD_overlay_d_0_bss__020eec68, var1, 0, 0x7f, param_3); // And these?
     } else {
         // var2 = func_ov00_020a5e9c(*(s32 *) PTR_027e0d38 + 0xc);
         if (var2 == 0) {
             // func_ov015_021849a4(DWORD_overlay_d_15_bss__02190458);
         }
-        // func_ov00_020a5e9c(DWORD_overlay_d_0_bss__020eec68, var1, 0, 0x7f, param_4);
+        // func_ov00_020a5e9c(DWORD_overlay_d_0_bss__020eec68, var1, 0, 0x7f, param_3);
     }
     // var1 = func_ov00_020a5e9c(*(s32 *) PTR_027e0d38 + 0xc);
     if (var1 == 0) {
@@ -427,9 +431,9 @@ ARM unk32 *MapManager::func_ov00_02082adc() {
 }
 
 ARM void MapManager::func_ov00_02082af4() {
-    // func_ov00_02082af4(DWORD_027e0f68) // Does not exist.
+    func_ov000_0208cc88(data_027e0f68);
     this->mMap->vfunc_48();
-    // this->func_ov00_02082808(0, ?, ?) // Only 1/3 params specified.
+    this->func_ov00_02082808(0);
     this->mUnk_0a = 1;
     this->mUnk_0b = 0;
 }
@@ -492,7 +496,7 @@ ARM u8 MapManager::GetCurrentMapPosY() {
     return this->mCourse->mCurrMapPos.y;
 }
 
-ARM unk8 MapManager::func_ov00_02082d40() {
+ARM u8 MapManager::func_ov00_02082d40() {
     if (this->mCourse->mType == CourseType_Sea) {
         return this->mCourse->mMapGrid[(u8) this->mCourse->mCurrMapPos.x][(u8) this->mCourse->mCurrMapPos.y];
     }