WarioWare: D.I.Y. Showcase is the first WarioWare title on the WiiWare platform. It is intended to serve as a platform for all WarioWare: D.I.Y. goods, such as microgames, music, and comics. The game is compatible with the Nintendo D.S. game WarioWare: D.I.Y. This game includes new microgames not seen in WarioWare: D.I.Y. However, other games can be obtained via the D.S., other Wii consoles, or Nintendo via Nintendo WFC. The player can also transfer microgames from Wii to Wii or DS.
Wario-Man, Dribble & Spitz, Kat & Ana, and 18-Volt are the characters who have their microgames. Wario-Man microgames feature Wario himself, whereas Dribble and Spitz’s microgames are about science fiction, Kat and Ana microgames are about animals, and 18-Volt microgames are about Nintendo products. This results in 72 microgames, as opposed to the 90 microgames found in WarioWare: D.I.Y.
Shuffle Stages are unlocked once all microgames have been completed. These stages contain all of the game’s microgames. The speed increases after completing five microgames.