ChuChu Rocket!

ChuChu Rocket! (Japanese: チューチューロケット!, Hepburn: ChūChū Roketto!) is an action puzzle video game developed by Sonic Team and published by Sega. Directed and produced by Yuji Naka of Sonic the Hedgehog fame, the game revolves around a series of puzzles where players lead ChuChus into rockets, while avoiding KapuKapus. The game also features a competitive multiplayer mode that pits players against each other in a race to collect the most ChuChus while avoiding and leading KapuKapus towards other players.

Originally developed for the Dreamcast and released in November 1999, Chu Chu! Rocket is credited as the first multiplayer online game on a home console, using the online capabilities of the Dreamcast, along with the Dreamarena service in Europe and, later, SegaNet in North America. Despite the discontinuation of the Dreamcast in March 2001, Sega kept servers for the game live until November 2003, with future versions of the game lacking online multiplayer gameplay. With Sega's move to third-party software development, Chu Chu Rocket! was ported to the Game Boy Advance as a launch title for the system in Japan and North America. Local multiplayer for the Game Boy Advance version was supported by the Game Link Cable. The Game Boy Advance version was also released on two Twin Pack cartridges bundled with Sonic Battle and Sonic Advance respectively in 2005 and another Twin Pack cartridge bundled with Columns Crown in 2008. The game was further ported to iOS in October 2010 and Android in November 2011.