The game is actually simply a modified version of the Japanese only release "Puyo Puyo". The first training levels of Puyo Puyo were removed from the game, but they can be put back in through hacking. If this is done, the Puyo Puyo characters Skeleton T., Nasu Grave, and Mummy are replaced by a character that has the intro of Coconuts with the mugshot of Scratch.
Contributed by CosmykTheDolfyn