There are a few minor challenges with Hammerin' Hero. Load times are long. Disconcertingly, there's a short lag time between the time when the level loads and when Gen is able to move. Also, sometimes when Gen hits an enemy, he gets killed as well (it really should be one or the other). Although the most enjoyable move is the horizontal smash (which lofts an enemy into the horizon), this move doesn't seem as quick and accurate as the vertical smash. Yet these are minor quibbles to which players can adjust. Overall, the variations on classic platformer gameplay show some undeniable ingenuity that translates into 12 levels of fun.