Though I prefer to earn my experience, medals, and achievements the old-fashioned way, I never cease to be impressed (and mildly amused) by those who design LEGO robots to accomplish their video game goals.
Guy Himber built a robot to get the Onyx Active Reload medal in Gears of War 3 (watch him get the medal).
Meanwhile, Justin built his own robot to max out his restoration level to 100 in Skyrim.
What do you think? Fair play or hax0rs?