Lemmings and Oh No! More Lemmings

Screenshots:

Background:
A colorized version of the classic puzzle game, Lemmings. Players help a group of creatures to each level's exit by giving certain lemmings special powers. Blocking Lemmings, for example, prevent the rest of the tribe from falling over a nearby cliff while Builder Lemmings create helpful staircases. Nastier players may well take delight in the game's Self Destruct option, which makes every lemming explode.