The positive: Color! It seems like most of the games I've played in this competition are lacking in color. This one did no such thing. I loved that. The wheel character is also pretty cute. The game didn't glitch or crash at all. It ran exactly as intended as far as I could tell.
The negative: I felt like the gravity was too strong. My wheel couldn't make it up a lot of the ramps, even as it built up speed. It would fall straight down far too hard and fast if it came up against any opposition while in the air. The fast pacing of the game coupled with the complete inconsistency in the shapes and sizes of the hand drawn ramps and loops made it basically impossible to find a rhythm or strategize in any way. I ended up resorting to just holding down the forward (D) button and watching the game happen instead of really engaging with it. I also didn't like the supercharge mechanic. I followed the instructions and I heard the supercharge sound effect but it never actually seemed to work to make me any faster. The sound effects for the power ups were obnoxious and loud.
Overall: It's a potentially good concept. A lot more energy needs to go into the game mechanics/physics. The supercharge feature needs to be overhauled. The ramps/loops need to be more consistent so that players don't just give up on actually playing the game and opt to just watch their wheel move endlessly forward (and never escape gravity like the game description implies is possible).