Bubble Bobble II

Released in October 1994 in Europe, Southeast Asia, Hong Kong, Mainland China, Taiwan and Korea.

A prototype version is known to exist - it have many differences from the final version; it’s almost an entirely different game, lacking even a title screen at the point in development it comes from. Levels, graphics, enemies, sound and music are different, gameplay is different, stage names are different, stage selection is different, no story sequence, no high score sequence, and no game logo during the attract mode. It is really more of a proof of concept sequel than anything close to a finished game at this point, and that's what makes it fascinating. The build date is close to a year before the final game, a lot changes in one year of development.