Interesting fusion of two classic logic games. Guide hairy lemming from A to B so that you create a way from tetris bricks. You can rotate them, combine them and build a safe passage from them for your hero. If you do not like particular brick, dump it in water. However keep in mind to leave free space around your avatar to maneuver. Add foes later in game, who you must outwit by clever brick building and you get solid entertainment.