Though not complex at first glance, Dr. Mario 64 is a good game. I souped up tetris of sorts, matching and dropping vitamins to clear seems simple but the simplstic basis begins to get difficult as you progress in levels. A highly addicting game that is a blast to play by yourself or with friends. Overall this game is just an upgrade of the snes version, which isn't a bad thing, but didn't bring out anything new to make it shine as it may have been able to do.