This just popped into Skelington's head after thinking about Mario Kart 7 and Maka Wuhu. Of course, this isn't limited to MK7.
So there is a well-known/semi well-known glitch in a game(any game) that you play with others, and one player utilizes that glitch for victory. Now would that be cheating, or would the victor be clever and deserving of the "fair" victory?