diff --git a/src/mame/drivers/dec0.cpp b/src/mame/drivers/dec0.cpp
index 465fc7557a1..49dcb7a9a70 100644
--- a/src/mame/drivers/dec0.cpp
+++ b/src/mame/drivers/dec0.cpp
@@ -42,7 +42,7 @@ Original Service Manuals and Service Mode (when available).
 
 
 ToDo:
-- Fix protection simulation in Birdie Try (that part needs a complete rewrite);
+- Fix protection simulation in Birdie Try (that part needs at least comparison with a real board);
 - graphics are completely broken in Automat and Secret Agent (bootleg);
 - Fighting Fantasy (bootleg) doesn't boot at all;
 - Hook up the 68705 in Midnight Resistance (bootleg) (it might not be used, leftover from the Fighting Fantasy bootleg on the same PCB?)
@@ -3301,9 +3301,9 @@ GAME( 1988, robocopj,   robocop,  robocop,  robocop,  dec0_state,  robocop, ROT0
 GAME( 1988, robocopu,   robocop,  robocop,  robocop,  dec0_state,  robocop, ROT0,   "Data East USA",         "Robocop (US revision 1)", MACHINE_SUPPORTS_SAVE )
 GAME( 1988, robocopu0,  robocop,  robocop,  robocop,  dec0_state,  robocop, ROT0,   "Data East USA",         "Robocop (US revision 0)", MACHINE_SUPPORTS_SAVE )
 GAME( 1989, hippodrm,   0,        hippodrm, hippodrm, dec0_state, hippodrm, ROT0,   "Data East USA",         "Hippodrome (US)", MACHINE_SUPPORTS_SAVE )
-GAME( 1989, ffantasy,   hippodrm, hippodrm, ffantasy, dec0_state, hippodrm, ROT0,   "Data East Corporation", "Fighting Fantasy (World revision 3)", MACHINE_SUPPORTS_SAVE )
+GAME( 1989, ffantasy,   hippodrm, hippodrm, ffantasy, dec0_state, hippodrm, ROT0,   "Data East Corporation", "Fighting Fantasy (Japan revision 3)", MACHINE_SUPPORTS_SAVE )
 GAME( 1989, ffantasyj,  hippodrm, hippodrm, ffantasy, dec0_state, hippodrm, ROT0,   "Data East Corporation", "Fighting Fantasy (Japan revision 2)", MACHINE_SUPPORTS_SAVE )
-GAME( 1989, ffantasya,  hippodrm, hippodrm, ffantasy, dec0_state, hippodrm, ROT0,   "Data East Corporation", "Fighting Fantasy (Japan)", MACHINE_SUPPORTS_SAVE )
+GAME( 1989, ffantasya,  hippodrm, hippodrm, ffantasy, dec0_state, hippodrm, ROT0,   "Data East Corporation", "Fighting Fantasy (Japan)", MACHINE_SUPPORTS_SAVE ) // presumably rev 1
 GAME( 1989, secretag,   0,        slyspy,   slyspy,   dec0_state,   slyspy, ROT0,   "Data East Corporation", "Secret Agent (World revision 3)", MACHINE_SUPPORTS_SAVE )
 GAME( 1989, secretagj,  secretag, slyspy,   slyspy,   dec0_state,   slyspy, ROT0,   "Data East Corporation", "Secret Agent (Japan revision 2)", MACHINE_SUPPORTS_SAVE )
 GAME( 1989, slyspy,     secretag, slyspy,   slyspy,   dec0_state,   slyspy, ROT0,   "Data East USA",         "Sly Spy (US revision 4)", MACHINE_SUPPORTS_SAVE )