Super Pii Pii Brothers
Super Pii Pii Brothers features “amazing realistic pee fluid dynamics, over 100 different peeing environments with multiple toilet and urinal styles,” and the ability for up to two players to “compete with dueling pee streams.”
Also, you get a pair of thong-style underwear to connect the Wiimote to.
Kudos, ThinkGeek! This is by far the best April Fools post I’ve seen today.