Made this a bit ago but the game wasn't seeming to be going anywhere. The idea is to have it broken into four parts: the head, the body, the wheel and the arm. The head and wheel would compress on landing and the wheel would also stick out more mid-air. The arm would be separated for obvious reasons and the design was done pretty quickly to convey the concept. I also would say that it should be a robot a wheel to save time animating and fit the theme of 'magnets', where as a human may be harder to draw in an art style specifically designed for technology. There could also be a slight idle animation with sin, or a run animation by offsetting the upper body parts in the direction of movement. The example shown is a land animation using this technique.