Update:
I started working on the second model of the Chao walker.
Here's a little preview of Chao walker, model C31KP (Knuckles Puncher).

Fun fact: Some sort of wings come from the jetpack-like thing on his back when he's climbing, running at max speed or (and here's the shocking part) when he glides.
Left to do:
- Improve UV-mapping (And maybe the textures themselves but I'm getting lazy when it comes to those)
- Do something with the jumping model and spin ball (any ideas people?)
If you think there's something else I should do please tell me so I can add it to my to-do list.