Itch! (2003)

Itch! is a puzzle game with simple rules, intuitive controls and tricky puzzles. The game principle is to simply arrange four equally colored fleas side by side in a straight line or square pattern for points. New fleas are born continuously, and you must keep pace with population growth. Every level reached makes your quest still tougher. The game features 3 different playing modes (Time Game, Round Game, Puzzle Game).