diff --git a/ld/libfiles.inc b/ld/libfiles.inc
index f68c04f5c..121a9ef67 100644
--- a/ld/libfiles.inc
+++ b/ld/libfiles.inc
@@ -26,7 +26,7 @@
 	build/ROMID/lib/lib_0bfb0.o (section); \
 	build/ROMID/lib/lib_0c000.o (section); \
 	build/ROMID/lib/lib_0d0a0.o (section); \
-	build/ROMID/lib/lib_0d520.o (section); \
+	build/ROMID/lib/main.o (section); \
 	build/ROMID/lib/lib_0e9d0.o (section); \
 	build/ROMID/lib/lib_11420.o (section); \
 	build/ROMID/lib/lib_121e0.o (section); \
diff --git a/src/boot/boot.c b/src/boot/boot.c
index e81441f58..eeb571c68 100644
--- a/src/boot/boot.c
+++ b/src/boot/boot.c
@@ -17,7 +17,7 @@
 #include "lib/lib_08a20.h"
 #include "lib/lib_09660.h"
 #include "lib/lib_0c000.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_13710.h"
diff --git a/src/game/bondeyespy.c b/src/game/bondeyespy.c
index c436ea849..79ae249ba 100644
--- a/src/game/bondeyespy.c
+++ b/src/game/bondeyespy.c
@@ -23,7 +23,7 @@
 #include "game/propobj.h"
 #include "gvars/gvars.h"
 #include "lib/lib_04790.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_13130.h"
 #include "lib/lib_13900.h"
diff --git a/src/game/camdraw.c b/src/game/camdraw.c
index 8ecdb95cb..478ef987a 100644
--- a/src/game/camdraw.c
+++ b/src/game/camdraw.c
@@ -18,7 +18,7 @@
 #include "game/utils.h"
 #include "gvars/gvars.h"
 #include "lib/lib_04a80.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_126b0.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/chr/chr.c b/src/game/chr/chr.c
index d42628dd9..1cd723dc3 100644
--- a/src/game/chr/chr.c
+++ b/src/game/chr/chr.c
@@ -42,7 +42,7 @@
 #include "game/wallhit.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_159b0.h"
 #include "lib/lib_16110.h"
diff --git a/src/game/chr/chraction.c b/src/game/chr/chraction.c
index 53710053b..f4d24b823 100644
--- a/src/game/chr/chraction.c
+++ b/src/game/chr/chraction.c
@@ -46,7 +46,7 @@
 #include "gvars/gvars.h"
 #include "lib/lib_04790.h"
 #include "lib/lib_04a80.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_13900.h"
diff --git a/src/game/chr/chraicommands.c b/src/game/chr/chraicommands.c
index 2a74897f0..d757c6cda 100644
--- a/src/game/chr/chraicommands.c
+++ b/src/game/chr/chraicommands.c
@@ -48,7 +48,7 @@
 #include "gvars/gvars.h"
 #include "lib/lib_04790.h"
 #include "lib/lib_04a80.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_11420.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/data/data_000000.c b/src/game/data/data_000000.c
index 66646f3e7..cf28f58c5 100644
--- a/src/game/data/data_000000.c
+++ b/src/game/data/data_000000.c
@@ -7,7 +7,7 @@
 #include "game/data/data_000000.h"
 #include "game/data/data_00e460.h"
 #include "lib/lib_0c000.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_3e730.h"
 #include "gvars/gvars.h"
 #include "stagesetup.h"
diff --git a/src/game/data/data_003dc0.c b/src/game/data/data_003dc0.c
index 71a92e1f5..a0e30b72d 100644
--- a/src/game/data/data_003dc0.c
+++ b/src/game/data/data_003dc0.c
@@ -7,7 +7,7 @@
 #include "game/data/data_000000.h"
 #include "game/data/data_00e460.h"
 #include "lib/lib_0c000.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_3e730.h"
 #include "gvars/gvars.h"
 #include "stagesetup.h"
diff --git a/src/game/endscreen.c b/src/game/endscreen.c
index 8a3cd8be7..e070d6d68 100644
--- a/src/game/endscreen.c
+++ b/src/game/endscreen.c
@@ -30,7 +30,7 @@
 #include "game/pdoptions.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_13130.h"
 #include "types.h"
 
diff --git a/src/game/explosion.c b/src/game/explosion.c
index 25bbe196a..595c16b11 100644
--- a/src/game/explosion.c
+++ b/src/game/explosion.c
@@ -25,7 +25,7 @@
 #include "game/wallhit.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_16110.h"
 #include "lib/lib_233c0.h"
diff --git a/src/game/game_0109d0.c b/src/game/game_0109d0.c
index 8c6c032e5..ad11734fb 100644
--- a/src/game/game_0109d0.c
+++ b/src/game/game_0109d0.c
@@ -9,7 +9,7 @@
 #include "game/data/data_02da90.h"
 #include "game/data/inventory.h"
 #include "gvars/gvars.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "types.h"
 
 GLOBAL_ASM(
diff --git a/src/game/game_01bea0.c b/src/game/game_01bea0.c
index feb8a9a90..09f11e517 100644
--- a/src/game/game_01bea0.c
+++ b/src/game/game_01bea0.c
@@ -29,7 +29,7 @@
 #include "game/mplayer.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_13900.h"
 #include "types.h"
diff --git a/src/game/game_097ba0.c b/src/game/game_097ba0.c
index 7d782e081..0e8b8f8ae 100644
--- a/src/game/game_097ba0.c
+++ b/src/game/game_097ba0.c
@@ -47,7 +47,7 @@
 #include "lib/lib_04790.h"
 #include "lib/lib_04a80.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_13130.h"
diff --git a/src/game/game_0abe70.c b/src/game/game_0abe70.c
index 97ff9bf2d..de7e4c4ac 100644
--- a/src/game/game_0abe70.c
+++ b/src/game/game_0abe70.c
@@ -16,7 +16,7 @@
 #include "game/game_166e40.h"
 #include "gvars/gvars.h"
 #include "lib/lib_04790.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_159b0.h"
 #include "lib/lib_16110.h"
diff --git a/src/game/game_0b63b0.c b/src/game/game_0b63b0.c
index f65e0e16c..452773ee5 100644
--- a/src/game/game_0b63b0.c
+++ b/src/game/game_0b63b0.c
@@ -59,7 +59,7 @@
 #include "lib/lib_04320.h"
 #include "lib/lib_04840.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/game_0d4690.c b/src/game/game_0d4690.c
index 2d34a2cde..05db6268d 100644
--- a/src/game/game_0d4690.c
+++ b/src/game/game_0d4690.c
@@ -13,7 +13,7 @@
 #include "game/utils.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_13130.h"
 #include "lib/lib_159b0.h"
 #include "lib/lib_16110.h"
diff --git a/src/game/game_0d5a90.c b/src/game/game_0d5a90.c
index f0f91ebe3..8c57476e3 100644
--- a/src/game/game_0d5a90.c
+++ b/src/game/game_0d5a90.c
@@ -12,7 +12,7 @@
 #include "game/game_1531a0.h"
 #include "game/game_166e40.h"
 #include "gvars/gvars.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "types.h"
 
 const char var7f1adbf0[] = "radmax";
diff --git a/src/game/game_0d7070.c b/src/game/game_0d7070.c
index f56de336f..1f8a73f4d 100644
--- a/src/game/game_0d7070.c
+++ b/src/game/game_0d7070.c
@@ -21,7 +21,7 @@
 #include "game/propobj.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "types.h"
 
diff --git a/src/game/game_0e0770.c b/src/game/game_0e0770.c
index 879aa9d79..680e956fd 100644
--- a/src/game/game_0e0770.c
+++ b/src/game/game_0e0770.c
@@ -17,7 +17,7 @@
 #include "game/utils.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_159b0.h"
 #include "lib/lib_16110.h"
diff --git a/src/game/game_0e5ce0.c b/src/game/game_0e5ce0.c
index 73b95720e..8ac7f2d69 100644
--- a/src/game/game_0e5ce0.c
+++ b/src/game/game_0e5ce0.c
@@ -24,7 +24,7 @@
 #include "game/pdoptions.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_13130.h"
 #include "types.h"
 
diff --git a/src/game/game_0f09f0.c b/src/game/game_0f09f0.c
index 184c95be1..18b9b4b15 100644
--- a/src/game/game_0f09f0.c
+++ b/src/game/game_0f09f0.c
@@ -40,7 +40,7 @@
 #include "game/propobj.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/game_0fd660.c b/src/game/game_0fd660.c
index 09c824ba5..5910ad6a3 100644
--- a/src/game/game_0fd660.c
+++ b/src/game/game_0fd660.c
@@ -27,7 +27,7 @@
 #include "game/pdoptions.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_13130.h"
 #include "lib/lib_16110.h"
 #include "types.h"
diff --git a/src/game/game_102240.c b/src/game/game_102240.c
index b45584c96..f46df0222 100644
--- a/src/game/game_102240.c
+++ b/src/game/game_102240.c
@@ -34,7 +34,7 @@
 #include "game/pdoptions.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_13130.h"
 #include "lib/lib_13900.h"
diff --git a/src/game/game_111600.c b/src/game/game_111600.c
index b32586d33..af9d1e0fd 100644
--- a/src/game/game_111600.c
+++ b/src/game/game_111600.c
@@ -14,7 +14,7 @@
 #include "game/training.h"
 #include "game/lang.h"
 #include "gvars/gvars.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "types.h"
 
 void currentPlayerClearInventory(void)
diff --git a/src/game/game_1371b0.c b/src/game/game_1371b0.c
index 0133a8056..0903f8cd3 100644
--- a/src/game/game_1371b0.c
+++ b/src/game/game_1371b0.c
@@ -22,7 +22,7 @@
 #include "game/lang.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_13900.h"
diff --git a/src/game/game_13b670.c b/src/game/game_13b670.c
index aee370598..18aa7a6a1 100644
--- a/src/game/game_13b670.c
+++ b/src/game/game_13b670.c
@@ -10,7 +10,7 @@
 #include "game/data/data_02da90.h"
 #include "game/game_13b670.h"
 #include "gvars/gvars.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_16110.h"
 #include "types.h"
diff --git a/src/game/game_141820.c b/src/game/game_141820.c
index 23ecad4c3..199175eeb 100644
--- a/src/game/game_141820.c
+++ b/src/game/game_141820.c
@@ -19,7 +19,7 @@
 #include "game/pdoptions.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_13130.h"
 #include "lib/lib_13900.h"
diff --git a/src/game/game_1531a0.c b/src/game/game_1531a0.c
index 65c750c64..b5dfb525f 100644
--- a/src/game/game_1531a0.c
+++ b/src/game/game_1531a0.c
@@ -15,7 +15,7 @@
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
 #include "lib/lib_0d0a0.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_4a360.h"
 #include "types.h"
diff --git a/src/game/game_157db0.c b/src/game/game_157db0.c
index 3ca1d5ec7..c655349ee 100644
--- a/src/game/game_157db0.c
+++ b/src/game/game_157db0.c
@@ -36,7 +36,7 @@
 #include "lib/lib_074f0.h"
 #include "lib/lib_09660.h"
 #include "lib/lib_0d0a0.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_126b0.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/game_167ae0.c b/src/game/game_167ae0.c
index 6bc2d675d..7e8703d00 100644
--- a/src/game/game_167ae0.c
+++ b/src/game/game_167ae0.c
@@ -101,7 +101,7 @@
 #include "gvars/gvars.h"
 #include "lib/lib_06440.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_11420.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/game_16e810.c b/src/game/game_16e810.c
index fe9e47480..39da7dbcc 100644
--- a/src/game/game_16e810.c
+++ b/src/game/game_16e810.c
@@ -12,7 +12,7 @@
 #include "gvars/gvars.h"
 #include "lib/lib_074f0.h"
 #include "lib/lib_0d0a0.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_48120.h"
 #include "lib/lib_4b170.h"
diff --git a/src/game/game_177e00.c b/src/game/game_177e00.c
index 9f529315f..97ee0ff65 100644
--- a/src/game/game_177e00.c
+++ b/src/game/game_177e00.c
@@ -22,7 +22,7 @@
 #include "game/mplayer.h"
 #include "game/pdoptions.h"
 #include "gvars/gvars.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_13130.h"
 #include "types.h"
 
diff --git a/src/game/game_1a3340.c b/src/game/game_1a3340.c
index bf0c1bf31..7f9ebb2c4 100644
--- a/src/game/game_1a3340.c
+++ b/src/game/game_1a3340.c
@@ -28,7 +28,7 @@
 #include "game/pdoptions.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_13130.h"
 #include "lib/lib_1a500.h"
 #include "types.h"
diff --git a/src/game/mplayer.c b/src/game/mplayer.c
index 8a6d8adae..c2525386e 100644
--- a/src/game/mplayer.c
+++ b/src/game/mplayer.c
@@ -28,7 +28,7 @@
 #include "game/pak/pak.h"
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_13130.h"
 #include "lib/lib_317f0.h"
diff --git a/src/game/pak/pak.c b/src/game/pak/pak.c
index edb86fd94..1c63a28f7 100644
--- a/src/game/pak/pak.c
+++ b/src/game/pak/pak.c
@@ -18,7 +18,7 @@
 #include "lib/lib_06330.h"
 #include "lib/lib_06440.h"
 #include "lib/lib_06550.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_13130.h"
diff --git a/src/game/propobj.c b/src/game/propobj.c
index d05016446..deca74603 100644
--- a/src/game/propobj.c
+++ b/src/game/propobj.c
@@ -68,7 +68,7 @@
 #include "lib/lib_04a80.h"
 #include "lib/lib_09660.h"
 #include "lib/lib_0d0a0.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/title.c b/src/game/title.c
index b95a463b6..cba565a2f 100644
--- a/src/game/title.c
+++ b/src/game/title.c
@@ -27,7 +27,7 @@
 #include "lib/lib_04320.h"
 #include "lib/lib_04790.h"
 #include "lib/lib_09660.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_13900.h"
 #include "lib/lib_159b0.h"
diff --git a/src/game/training.c b/src/game/training.c
index bdd6352ba..8819cb93b 100644
--- a/src/game/training.c
+++ b/src/game/training.c
@@ -36,7 +36,7 @@
 #include "gvars/gvars.h"
 #include "lib/lib_09660.h"
 #include "lib/lib_0d0a0.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/wallhit.c b/src/game/wallhit.c
index e730ea515..9a1a56906 100644
--- a/src/game/wallhit.c
+++ b/src/game/wallhit.c
@@ -18,7 +18,7 @@
 #include "game/utils.h"
 #include "game/wallhit.h"
 #include "gvars/gvars.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_12dc0.h"
 #include "lib/lib_159b0.h"
 #include "lib/lib_16110.h"
diff --git a/src/game/weather.c b/src/game/weather.c
index dd48cd851..328c8ee80 100644
--- a/src/game/weather.c
+++ b/src/game/weather.c
@@ -15,7 +15,7 @@
 #include "game/game_166e40.h"
 #include "game/game_167ae0.h"
 #include "gvars/gvars.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_12dc0.h"
diff --git a/src/game/weathertick.c b/src/game/weathertick.c
index 7e3a37776..b479a4f0e 100644
--- a/src/game/weathertick.c
+++ b/src/game/weathertick.c
@@ -9,7 +9,7 @@
 #include "game/data/data_02da90.h"
 #include "game/weather.h"
 #include "gvars/gvars.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "types.h"
 
 void weatherTick(void)
diff --git a/src/include/lib/lib_0d520.h b/src/include/lib/main.h
similarity index 84%
rename from src/include/lib/lib_0d520.h
rename to src/include/lib/main.h
index 0cfb1ea82..6a8b3e8ff 100644
--- a/src/include/lib/lib_0d520.h
+++ b/src/include/lib/main.h
@@ -1,5 +1,5 @@
-#ifndef _IN_LIB_LIB_0D520_H
-#define _IN_LIB_LIB_0D520_H
+#ifndef _IN_LIB_MAIN_H
+#define _IN_LIB_MAIN_H
 #include <ultra64.h>
 #include "types.h"
 
diff --git a/src/lib/lib_13900.c b/src/lib/lib_13900.c
index 60f148868..98e3506b7 100644
--- a/src/lib/lib_13900.c
+++ b/src/lib/lib_13900.c
@@ -10,7 +10,7 @@
 #include "game/pak/pak.h"
 #include "gvars/gvars.h"
 #include "lib/lib_04a80.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_13900.h"
 #include "lib/lib_4f5e0.h"
 #include "types.h"
diff --git a/src/lib/lib_0d520.c b/src/lib/main.c
similarity index 99%
rename from src/lib/lib_0d520.c
rename to src/lib/main.c
index 952f6a5de..73917499e 100644
--- a/src/lib/lib_0d520.c
+++ b/src/lib/main.c
@@ -54,7 +54,7 @@
 #include "lib/lib_0bfb0.h"
 #include "lib/lib_0c000.h"
 #include "lib/lib_0d0a0.h"
-#include "lib/lib_0d520.h"
+#include "lib/main.h"
 #include "lib/lib_0e9d0.h"
 #include "lib/lib_121e0.h"
 #include "lib/lib_126b0.h"