Lopan is a clone of Shanghai where the goal is to click on pairs of matching tiles to make them go away to eventually clear the board. Tiles can only be clicked on if they’re not blocked sideways or above by another tile. Most tiles only match identical ones, but any two flowers match (ORC, PLUM, BAM or MUM) and any two seasons match (SPR, SUM, AUT or WIN).

http://wiibrew.org/wiki/Lopan