diff --git a/src/game.cc b/src/game.cc
index 1714a8e..89c3e4f 100644
--- a/src/game.cc
+++ b/src/game.cc
@@ -92,7 +92,7 @@ static char _aDec11199816543[] = VERSION_BUILD_TIME;
 static bool gGameUiDisabled = false;
 
 // 0x5186B8
-static int _game_state_cur = GAME_STATE_0;
+static int gGameState = GAME_STATE_0;
 
 // 0x5186BC
 static bool gIsMapper = false;
@@ -439,7 +439,7 @@ void gameExit()
 int gameHandleKey(int eventCode, bool isInCombatMode)
 {
     // NOTE: Uninline.
-    if (_game_state() == GAME_STATE_5) {
+    if (gameGetState() == GAME_STATE_5) {
         _gdialogSystemEnter();
     }
 
@@ -1041,48 +1041,48 @@ int globalVarsRead(const char* path, const char* section, int* variablesListLeng
 }
 
 // 0x443E2C
-int _game_state()
+int gameGetState()
 {
-    return _game_state_cur;
+    return gGameState;
 }
 
 // 0x443E34
-int _game_state_request(int a1)
+int gameRequestState(int newGameState)
 {
-    if (a1 == GAME_STATE_0) {
-        a1 = GAME_STATE_1;
-    } else if (a1 == GAME_STATE_2) {
-        a1 = GAME_STATE_3;
-    } else if (a1 == GAME_STATE_4) {
-        a1 = GAME_STATE_5;
+    switch (newGameState) {
+    case GAME_STATE_0:
+        newGameState = GAME_STATE_1;
+        break;
+    case GAME_STATE_2:
+        newGameState = GAME_STATE_3;
+        break;
+    case GAME_STATE_4:
+        newGameState = GAME_STATE_5;
+        break;
     }
 
-    if (_game_state_cur != GAME_STATE_4 || a1 != GAME_STATE_5) {
-        _game_state_cur = a1;
-        return 0;
+    if (gGameState == GAME_STATE_4 && newGameState == GAME_STATE_5) {
+        return -1;
     }
 
-    return -1;
+    gGameState = newGameState;
+    return 0;
 }
 
 // 0x443E90
-void _game_state_update()
+void gameUpdateState()
 {
-    int v0;
-
-    v0 = _game_state_cur;
-    switch (_game_state_cur) {
+    switch (gGameState) {
     case GAME_STATE_1:
-        v0 = GAME_STATE_0;
+        gGameState = GAME_STATE_0;
         break;
     case GAME_STATE_3:
-        v0 = GAME_STATE_2;
+        gGameState = GAME_STATE_2;
         break;
     case GAME_STATE_5:
-        v0 = GAME_STATE_4;
+        gGameState = GAME_STATE_4;
+        break;
     }
-
-    _game_state_cur = v0;
 }
 
 // 0x443EF0
diff --git a/src/game.h b/src/game.h
index 992958e..c8db879 100644
--- a/src/game.h
+++ b/src/game.h
@@ -34,9 +34,9 @@ bool gameUiIsDisabled();
 int gameGetGlobalVar(int var);
 int gameSetGlobalVar(int var, int value);
 int globalVarsRead(const char* path, const char* section, int* variablesListLengthPtr, int** variablesListPtr);
-int _game_state();
-int _game_state_request(int a1);
-void _game_state_update();
+int gameGetState();
+int gameRequestState(int newGameState);
+void gameUpdateState();
 int showQuitConfirmationDialog();
 
 int gameShowDeathDialog(const char* message);
diff --git a/src/game_dialog.cc b/src/game_dialog.cc
index fee42e6..e6a1c17 100644
--- a/src/game_dialog.cc
+++ b/src/game_dialog.cc
@@ -792,7 +792,7 @@ void gameDialogEnter(Object* speaker, int a2)
 // 0x444FE4
 void _gdialogSystemEnter()
 {
-    _game_state_update();
+    gameUpdateState();
 
     _gdDialogTurnMouseOff = true;
 
@@ -808,9 +808,9 @@ void _gdialogSystemEnter()
         _tile_scroll_to(gGameDialogOldCenterTile, 2);
     }
 
-    _game_state_request(GAME_STATE_2);
+    gameRequestState(GAME_STATE_2);
 
-    _game_state_update();
+    gameUpdateState();
 }
 
 // 0x445050
diff --git a/src/interpreter_extra.cc b/src/interpreter_extra.cc
index 575f389..f33cf48 100644
--- a/src/interpreter_extra.cc
+++ b/src/interpreter_extra.cc
@@ -2699,7 +2699,7 @@ static void opGameDialogSystemEnter(Program* program)
         return;
     }
 
-    if (_game_state_request(GAME_STATE_4) == -1) {
+    if (gameRequestState(GAME_STATE_4) == -1) {
         return;
     }
 
diff --git a/src/inventory.cc b/src/inventory.cc
index 720866e..52a5bd3 100644
--- a/src/inventory.cc
+++ b/src/inventory.cc
@@ -599,7 +599,7 @@ void inventoryOpen()
 
         _display_body(-1, INVENTORY_WINDOW_TYPE_NORMAL);
 
-        if (_game_state() == GAME_STATE_5) {
+        if (gameGetState() == GAME_STATE_5) {
             break;
         }
 
diff --git a/src/scripts.cc b/src/scripts.cc
index d993c16..43bb711 100644
--- a/src/scripts.cc
+++ b/src/scripts.cc
@@ -746,7 +746,7 @@ static void _script_chk_timed_events()
         v1 = true;
     }
 
-    if (_game_state() != GAME_STATE_4) {
+    if (gameGetState() != GAME_STATE_4) {
         if (getTicksBetween(v0, _last_light_time) >= 30000) {
             _last_light_time = v0;
             scriptsExecMapUpdateScripts(SCRIPT_PROC_MAP_UPDATE);