pacman/pacman.cpp: Marked mspacmanbgf as IMPERFECT_COLORS.

B-G channels are swapped in the real game, showing a purple/pink Ms PacMan.

src/mame/pacman/pacman.cpp

@@ -8403,7 +8403,7 @@ GAME( 1981, mspackpls,  mspacman, woodpek,  mspacman, pacman_state,  init_mspack
 GAME( 198?, mspacmanbg,   mspacman, woodpek, mspacman, pacman_state,  empty_init,   ROT90,  "bootleg",                 "Ms. Pac-Man ('Made in Greece' bootleg, set 1)",                      MACHINE_SUPPORTS_SAVE )
 GAME( 1997, mspacmanbg2,  mspacman, woodpek, mspacman, pacman_state,  empty_init,   ROT90,  "bootleg",                 "Ms. Pac-Man ('Made in Greece' bootleg, set 2)",                      MACHINE_SUPPORTS_SAVE )
 GAME( 1992, mspacmanbgd,  mspacman, woodpek, mspacman, pacman_state,  empty_init,   ROT90,  "bootleg (Datamat)",       "Miss Pukman ('Made in Greece' Datamat bootleg)",                     MACHINE_SUPPORTS_SAVE ) // shows 'Miss Pukman 1991/1992' but confirmed to be the bootleg distributed by Datamat
-GAME( 1988, mspacmanbgf,  mspacman, woodpek, mspacman, pacman_state,  empty_init,   ROT90,  "bootleg (Fermin)",        "Mr Pac-Turbo ('Made in Greece' Fermin bootleg)",                     MACHINE_SUPPORTS_SAVE ) // Argentine bootleg with turbo speed and some other bytes of code changed.
+GAME( 1988, mspacmanbgf,  mspacman, woodpek, mspacman, pacman_state,  empty_init,   ROT90,  "bootleg (Fermin)",        "Mr Pac-Turbo ('Made in Greece' Fermin bootleg)",                     MACHINE_IMPERFECT_COLORS | MACHINE_SUPPORTS_SAVE ) // Argentine bootleg with turbo speed. B-G color lines are intended swapped, showing a Ms PacMan purple/pink.
 GAME( 1992, mspacmanblt,  mspacman, woodpek, mspacman, pacman_state,  empty_init,   ROT90,  "bootleg (Triunvi)",       "Come-Cocos (Ms. Pac-Man) ('Made in Greece' Triunvi bootleg, set 1)", MACHINE_SUPPORTS_SAVE )
 GAME( 1992, mspacmanblt2, mspacman, woodpek, mspacman, pacman_state,  empty_init,   ROT90,  "bootleg (Triunvi)",       "Come-Cocos (Ms. Pac-Man) ('Made in Greece' Triunvi bootleg, set 2)", MACHINE_SUPPORTS_SAVE )
 GAME( 1991, mspacmanbcc,  mspacman, woodpek, mspacman, pacman_state,  empty_init,   ROT90,  "bootleg (Tecnausa)",      "Come-Cocos (Ms. Pac-Man) ('Made in Greece' Tecnausa bootleg)",       MACHINE_SUPPORTS_SAVE ) // ^ same PCB, also dated 1991, distributed by Tecnausa