Puyo Pop Fever, known as Puyo Puyo Fever (ぷよぷよフィーバー, Puyo Puyo Fībā) in Japan, is the fifth installment in the popular Puyo Puyo puzzle game series, developed by Sonic Team, released on a wide variety of systems in several regions. Sega published all the Japanese versions of the game; the game was scarcely released internationally, and versions of it were released by other publishers. North America only received the Nintendo GameCube and DS versions, whereas Europe received all domestic and major handheld versions. Sonic Team acquired the rights to develop the series from former publisher Compile, after they went bankrupt prior to the release of Sonic Team's first Puyo Puyo game Puyo Pop. The NAOMI port to Dreamcast was the last Dreamcast game developed by Sonic Team.

Puzz Loop is a 1998 tile-matching arcade puzzle game developed by Mitchell Corporation. It was later ported to the Game Boy Color, Neo Geo Pocket Color, PlayStation and Samsung Nuon DVD players under the name Ballistic. The original Puzz Loop game was also known by this title. In 2008, publisher Hudson Soft released the game on Apple's App Store for the iPhone and iPod Touch. The original Puzz Loop was followed by a sequel, Puzz Loop 2, in 2001.