Hmm, it was a sound game with nice music chosen for it (a remix of the boss theme from sonic 3 (final boss, not doomsday zone) I believe) but my only nitpick that I have with this game is down to the controls. Often I would just tap left or right just once and find my character suddenly zooming into a dash (which I believe is meant to be double tap) either left or right. This often made my distance way too short as I'd crash into cars unneededly.

if you can fix that, it should be a good game

I like it. Graphics, music and controls are good, also the 2 player mode is great, but I think that the difficulty should be raised from easy to hard slower.

The objects could be introduced with an exclamation mark to ease the game a bit and let the player know that danger is ahead.

The objects in the foreground could also be some more in contrast with the background objects. Maybe with a white highlight or some kind of glow effect. I found it difficult to see the black damaged car, when concentrating on the helicopter and almost ran into the car without noticing.

Looking forward for a sequel or update :)