diff --git a/config/eur/arm9/symbols.txt b/config/eur/arm9/symbols.txt
index ef196184..3dfe41b7 100644
--- a/config/eur/arm9/symbols.txt
+++ b/config/eur/arm9/symbols.txt
@@ -1358,7 +1358,7 @@ _ZN8GameModeD0Ev kind:function(thumb,size=0xc) addr:0x0202c0ac
 _ZN8GameMode13func_0202c0b8Ev kind:function(thumb,size=0x2) addr:0x0202c0b8
 _ZN8GameMode8vfunc_0cEPt kind:function(thumb,size=0x2) addr:0x0202c0bc
 _ZN8GameMode8vfunc_10EPt kind:function(thumb,size=0x2) addr:0x0202c0c0
-_ZN8GameMode8vfunc_14EPt kind:function(thumb,size=0x2) addr:0x0202c0c4
+_ZN8GameMode8vfunc_14Eb kind:function(thumb,size=0x2) addr:0x0202c0c4
 _ZN8GameMode8vfunc_18Ev kind:function(thumb,size=0x2) addr:0x0202c0c8
 func_0202c0cc kind:function(thumb,size=0x5c) addr:0x0202c0cc
 func_0202c128 kind:function(thumb,size=0x27c) addr:0x0202c128
diff --git a/config/usa/arm9/symbols.txt b/config/usa/arm9/symbols.txt
index b8b242ee..02f69854 100644
--- a/config/usa/arm9/symbols.txt
+++ b/config/usa/arm9/symbols.txt
@@ -1358,7 +1358,7 @@ _ZN8GameModeD0Ev kind:function(thumb,size=0xc) addr:0x0202c094
 _ZN8GameMode13func_0202c0b8Ev kind:function(thumb,size=0x2) addr:0x0202c0a0
 _ZN8GameMode8vfunc_0cEPt kind:function(thumb,size=0x2) addr:0x0202c0a4
 _ZN8GameMode8vfunc_10EPt kind:function(thumb,size=0x2) addr:0x0202c0a8
-_ZN8GameMode8vfunc_14EPt kind:function(thumb,size=0x2) addr:0x0202c0ac
+_ZN8GameMode8vfunc_14Eb kind:function(thumb,size=0x2) addr:0x0202c0ac
 _ZN8GameMode8vfunc_18Ev kind:function(thumb,size=0x2) addr:0x0202c0b0
 func_0202c0cc kind:function(thumb,size=0x5c) addr:0x0202c0b4
 func_0202c128 kind:function(thumb,size=0x27c) addr:0x0202c110
diff --git a/include/Game/GameMode.hpp b/include/Game/GameMode.hpp
index 2a80d115..d1f5c4e9 100644
--- a/include/Game/GameMode.hpp
+++ b/include/Game/GameMode.hpp
@@ -24,10 +24,10 @@ public:
     /* 008 */
 
     /* 00 */ virtual ~GameMode();
-    /* 08 */ virtual unk32 vfunc_08(unk32 param1) = 0;
+    /* 08 */ virtual GameModeId vfunc_08(bool param1) = 0;
     /* 0c */ virtual void vfunc_0c(u16 *param1);
     /* 10 */ virtual void vfunc_10(u16 *param1);
-    /* 14 */ virtual void vfunc_14(u16 *param1);
+    /* 14 */ virtual void vfunc_14(bool param1);
     /* 18 */ virtual void vfunc_18();
     /* 1c */
 
diff --git a/include/Game/GameModeAdventure.hpp b/include/Game/GameModeAdventure.hpp
index 934a6a10..18ef4981 100644
--- a/include/Game/GameModeAdventure.hpp
+++ b/include/Game/GameModeAdventure.hpp
@@ -102,7 +102,7 @@ public:
     /* 018 */
 
     /* 00 */ virtual ~GameModeAdventure() override;
-    /* 08 */ virtual unk32 vfunc_08(unk32 param1) override;
+    /* 08 */ virtual unk32 vfunc_08(bool param1) override;
     /* 0c */ virtual void vfunc_0c(u16 *param1) override;
     /* 10 */ virtual void vfunc_10(u16 *param1) override;
     /* 14 */ virtual void vfunc_14(u16 *param1) override;
diff --git a/src/09_Adventure/Game/GameModeAdventure.cpp b/src/09_Adventure/Game/GameModeAdventure.cpp
index dbfa9690..4bfa2526 100644
--- a/src/09_Adventure/Game/GameModeAdventure.cpp
+++ b/src/09_Adventure/Game/GameModeAdventure.cpp
@@ -100,7 +100,7 @@ THUMB GameModeAdventure::~GameModeAdventure() {
 }
 
 // non-matching
-ARM unk32 GameModeAdventure::vfunc_08(unk32 param1) {
+ARM unk32 GameModeAdventure::vfunc_08(bool param1) {
     unk32 uVar2 = 0;
 
     if (data_027e0d38->mUnk_14 == 1) {
diff --git a/src/Main/Game/GameMode.cpp b/src/Main/Game/GameMode.cpp
index fd68c708..6e1792bb 100644
--- a/src/Main/Game/GameMode.cpp
+++ b/src/Main/Game/GameMode.cpp
@@ -4,5 +4,5 @@ THUMB GameMode::~GameMode() {}
 THUMB void GameMode::func_0202c0b8() {}
 THUMB void GameMode::vfunc_0c(u16 *param1) {}
 THUMB void GameMode::vfunc_10(u16 *param1) {}
-THUMB void GameMode::vfunc_14(u16 *param1) {}
+THUMB void GameMode::vfunc_14(bool param1) {}
 THUMB void GameMode::vfunc_18() {}