Youkaidou is a Role-Playing game, developed and published by Fuuki Co. Ltd., which was released in Japan in 2002. Youkaidou

Line up 3 or more blocks of the same color so they touch, left to right or top to bottom or any combo of this. The large ones will disappear and the small ones will become large. If they reach the top of the screen, game is over. Gyakuten!! Puzzle Bancho