diff --git a/src/mame/drivers/system16.c b/src/mame/drivers/system16.c
index 64837a133f7..6dfa00a806c 100644
--- a/src/mame/drivers/system16.c
+++ b/src/mame/drivers/system16.c
@@ -2780,8 +2780,8 @@ ROM_END
 
 /* System16A */
 /*          rom       parent    machine   inp       init */
-GAME( 1987, shinoblb, shinobi,  shinob2,  shinobi,  shinobl,  ROT0,   "[Sega] (Beta bootleg)", "Shinobi (Beta bootleg)", 0 )
-GAME( 1987, shinobld, shinobi,  shinob2,  shinobi,  shinobl,  ROT0,   "[Sega] (Datsu bootleg)", "Shinobi (Datsu bootleg)", 0 )
+GAME( 1987, shinoblb, shinobi,  shinob2,  shinobi,  shinobl,  ROT0,   "[Sega] (Beta bootleg)", "Shinobi (Beta bootleg)", GAME_IMPERFECT_GRAPHICS | GAME_IMPERFECT_SOUND )
+GAME( 1987, shinobld, shinobi,  shinob2,  shinobi,  shinobl,  ROT0,   "[Sega] (Datsu bootleg)", "Shinobi (Datsu bootleg)", GAME_IMPERFECT_GRAPHICS | GAME_NO_SOUND | GAME_NOT_WORKING )
 
 /* System16B */
 /*          rom       parent    machine   inp       init */
@@ -2796,8 +2796,8 @@ GAME( 1989, fpointbj, fpoint,   fpointbl, fpointbj, fpointbl, ROT0,   "bootleg",
 GAME( 1989, goldnabl, goldnaxe, goldnaxe, goldnaxe, goldnabl, ROT0,   "bootleg", "Golden Axe (bootleg, encrypted)", GAME_NOT_WORKING )
 GAME( 1989, goldnab2, goldnaxe, goldnaxe, goldnaxe, goldnabl, ROT0,   "bootleg", "Golden Axe (bootleg)", GAME_NOT_WORKING )
 
-GAME( 1988, passshtb, passsht,  passsht,  passsht,  passsht,  ROT270, "bootleg", "Passing Shot (2 Players) (bootleg)", GAME_IMPERFECT_SOUND )
+GAME( 1988, passshtb, passsht,  passsht,  passsht,  passsht,  ROT270, "bootleg", "Passing Shot (2 Players) (bootleg)", GAME_IMPERFECT_GRAPHICS | GAME_IMPERFECT_SOUND )
 GAME( 1988, passht4b, passsht,  passht4b, passht4b, passht4b, ROT270, "bootleg", "Passing Shot (4 Players) (bootleg)", GAME_IMPERFECT_GRAPHICS | GAME_NO_SOUND | GAME_NOT_WORKING )
 GAME( 1988, tetrisbl, tetris,   tetrisbl, tetris,   tetrisbl, ROT0,   "bootleg", "Tetris (bootleg)", 0 )
-GAME( 1989, tturfbl,  tturf,    tturfbl,  tturf,    tturfbl,  ROT0,   "bootleg", "Tough Turf (bootleg)", GAME_IMPERFECT_GRAPHICS | GAME_NOT_WORKING )
+GAME( 1989, tturfbl,  tturf,    tturfbl,  tturf,    tturfbl,  ROT0,   "bootleg", "Tough Turf (bootleg)", GAME_IMPERFECT_GRAPHICS | GAME_IMPERFECT_SOUND | GAME_NOT_WORKING )
 GAME( 1988, wb3bbl,   wb3,      wb3bbl,   wb3b,     wb3bbl,   ROT0,   "bootleg", "Wonder Boy III - Monster Lair (bootleg)", 0 )