In case you thought about deleting that Japanese PuyoPuyo Tetris in favor for the US one think again! The US version restricts each match to only a single win before it ends the demo and makes you choose your mode and character all over again, while the Japanese demo allows you to choose from 1-3 wins to decide the champion in each match! You could use the US version to remember what all the menus mean and then transfer that knowledge onto the Japanese demo if you want to know how to thoroughly navigate the menus and be able to play more rounds in a battle. Happy puzzling!