That Pac-Man Megamix looks really neat. It looks like it took graphics from Pac-Man Collection's Pac-Man port on the GBA and edited them. The map in the corner and the ghost's blocky graphics are definitely from there. The impact games version seems like it doesn't start with the ghosts scattering. I remember a plug n play my mom used to play would bother me because Blinky wouldn't go to his proper scatter target so I started using that as a simple accuracy test for other ports. The Ms. Pac-Man Remake's music is From Ms. Pac-Man Maze Madness, but the munching sound sounds like the Genesis port's. I wish there was some ultimate pick and choose Pac-Man game where you could select sounds and music by system, game, port etc. I love that kind of stuff