WarioWare, Inc.: Mega Microgames!,, known as WarioWare, Inc.: Minigame Mania in the PAL region, is a minigame compilation video game developed and published by Nintendo for the Game Boy Advance. The debut title in the WarioWare series, the game is about rapid completion of "microgames", short minigames given to the player consecutively and with increasing speed per each game complete. The game's concept was inspired by the "Sound Bomber" mode of Mario Artist: Polygon Studio for the Nintendo 64DD. The music and sound effects were recycled from Wario Land 4. The game was produced by Takehiro Izushi and directed by Hirofumi Matsuoka. Matsuoka was also the director of Polygon Studio. Mega Microgames! was released in 2003; in Japan in March, in North America and Europe in May and in Australia in June.

WarioWare, Inc.: Mega Party Game$! is a party video game for the GameCube. A remake of WarioWare, Inc.: Mega Microgames!, and the second installment in the WarioWare series, the game translates the "microgame" gameplay of Mega Microgames! to be playable in a multiplayer environment. It comes with eight special multiplayer modes for up to four players that all involve the known microgames in some way.