Company Swiss Komputer Games Bureau created these great apps:
Strummer, StrummerLite, Walk The Line, Easter Egg and Spoon Race, Free Easter Egg and Spoon Race, Walk The FREE Line, Fart Drums, Fart Drums HD, Fart FREE Drums, Egg Race HD, Pump Up The Frog, Toy Xylophone, Toy Mini Piano, Toy Drums, and others..