Bubble Bobble is a long-running game franchise which has amassed over 30 games and two spin-offs. The series has been developed and published by the Taito Corporation, and later by their parent company, Square Enix. The franchise's core series is the titular Bubble Bobble series, while two others, the Rainbow Islands series and the Bust-A-Move series being spinoffs from the core titles. The Bubble Bobble franchise is one of the most ported game franchises ever, with the original appearing on over 19 different platforms, and the sequel, Rainbow Islands, appearing on 17 different ones. While the first game, Chack'n Pop, was originally a stand-alone game, it has been retroactively absorbed into the Bubble Bobble series. The series proper started with Bubble Bobble.