The most original one... That's really difficult to answer. One of my characters is upside down, because his “gravity” works differently, because he is from the “mirrored” world. Magic was common in his original world, so he learned to walk in the air. The funny aspect about him is, that his magic abilities grow stronger in each game. In the second game he walks normally on the ground, but his hair still falls up. And in the third one he can walk completely normal on the ground. Well, at least he pretends to, he can't just change his own “gravity”. At one point he fell asleep and he was not able to control his magic in this state. When he woke up, he realized almost fell in the space! He had to jump all the way back to the ground, because his magic created invisible platforms below his feet. Even so he could have died, he was pretty nonchalant about that incident.