PacMan Worlds is a Pac-Man knockoff with huge areas to cover as well as items and keys to unlock 3 (or maybe 4) mini games within.
In Pacman you can find 3 mini games within. Pacnoid is an "Arkanoid" type game with a level editor. Pacsteroids is an "Asteroid" clone, but you travel through waves to worlds and purchase better guns, shields and other goodies. MasterPac is a â€œMastermindâ€ game. Finally, if you open the readme, thereâ€™s one more surprise.
If you want a Pac-Man clone, then this isnâ€™t quite it. Itâ€™s familiar but itâ€™s more like an adventure slash RPG Pac-Man is the best I can come up with.