Great game!
I'm not reading over everyone's responses so some of this stuff may be repeated:
- Really good job with graphics! I really liked the color changing background; I felt that it showed off your attention to detail. One thing I might recommend, though, is some sort of tween or interframe between your motions and the mouse's motions. While I think that it's necessary from a gameplay perspective for motion to be instantaneous in an infinite runner, I think it would vastly improve the feel of the game. I noticed you made the cheese leave a skid mark whenever it moved to another column, but I think that a constant trail of cheese behind the player would suffice for making the transitions seem smoother.
- I didn't have much problem with the controls or how the game felt. It all felt pretty responsive when paired with the audio and visual effects. Good job!
- Some of the audio didn't really gel with the background music in my opinion. It seemed like there were two different styles, one of which was 8-bit and the other which seemed fragmented from it with the more realistic sound effects you used. If you found some way to merge the two I would've given you a full 5 stars for audio.
- More powerups!
Nice job with your entry!