Nintendo Power, an American magazine owned by Future, in their May issue reviewed Mario Power Tennis with a 7.0 out of 10, citing a lack of an RPG mode as a negative point. I'm more interested in being able to customize my Mii to kick some online tennis player butt. I don't think I will succeed in doing the last part, but at least I'll look handsome doing so. Check out these all-new screens from the Japanese build of the game. Mario Tennis Open takes to the court in North America on Sunday, May 20th.