Well then, WarioWare does get credit for being different with each new game. Wish the same could be said for Pokemon.
But hold the phone, Wario Land has its differences with each new game! Wario Land 1 was just a basic platformer, same with Wario Land 2, but Wario Land 3 gave Wario that neat ability of getting power-ups from enemy attacks. Wario Land 4 was just WL3, but Shake It really played on the Wii's Remote functions.