Nukey Shay's Hack 'Em was built on top of Ebivision's Pesco, which itself was a modification of Ebivision's port of Pac-Man. This hack throws in just about everything you could hope for in an Atari 2600 version of Pac-Man. Even Pac-Man Plus and Hangly Man, themselves hacks of the original Pac-Man arcade game, are bundled in here.