Chris Buffa (Modojo): Over the past 30 years, we've seen our fair share of button mashers, from the old fighting games to the 90's side-scrolling beat-em-ups and, more infamously, Nintendo's Mario Party series that is guaranteed to transform players into masochists or their money back. RAWR! Interactive's Count to a Billion, however, takes button mashing to a whole other galaxy. This iPhone game is so intense that it's a borderline workout. In fact, we think our biceps just grew a few inches playing it. Suck on that, Wii Fit.