diff --git a/libretro/libretro.cpp b/libretro/libretro.cpp
index cf5116f4..9ae42d9c 100644
--- a/libretro/libretro.cpp
+++ b/libretro/libretro.cpp
@@ -28,15 +28,12 @@
 #define RETRO_MEMORY_SNES_BSX_PRAM            ((2 << 8) | RETRO_MEMORY_SAVE_RAM)
 #define RETRO_MEMORY_SNES_SUFAMI_TURBO_A_RAM  ((3 << 8) | RETRO_MEMORY_SAVE_RAM)
 #define RETRO_MEMORY_SNES_SUFAMI_TURBO_B_RAM  ((4 << 8) | RETRO_MEMORY_SAVE_RAM)
-#define RETRO_MEMORY_SNES_GAME_BOY_RAM        ((5 << 8) | RETRO_MEMORY_SAVE_RAM)
-#define RETRO_MEMORY_SNES_GAME_BOY_RTC        ((6 << 8) | RETRO_MEMORY_RTC)
 
 // Special game types passed into retro_load_game_special().
 // Only used when multiple ROMs are required.
 #define RETRO_GAME_TYPE_BSX             0x101
 #define RETRO_GAME_TYPE_BSX_SLOTTED     0x102
 #define RETRO_GAME_TYPE_SUFAMI_TURBO    0x103
-#define RETRO_GAME_TYPE_SUPER_GAME_BOY  0x104
 
 static retro_log_printf_t log_cb = NULL;
 static retro_video_refresh_t s9x_video_cb = NULL;