Entertaining.
Yesterday I played this game, but since it was late I didn't really
bother to give it any attention. Today on the other hand I played all of the levels, collected all of the stars and beat 'nightmare'.
Now your physics engine is pretty good, it controls the wheel like it should, altough I must say I would prefer some more friction. At some points it seems to be too bouncy, this is a realism thing but in the game it still works fine, as this encourages the player to control his speed and not to go far out with the cursor keys.
I would like to suggest one thing tough, a save option. I expected that when I would start again today my game from yesterday would had been saved, sadly this was not the case.
Graphics: For such a simple game, your graphics are fairly well made. Originality wise I would love to see different textures for different maps, if nightmare had a texture that would actually affect the physics that would had been great, but perhaps that's too much.
I also noted that the current texture is tiled, this does seem kinda annoying, especially when you zoom in and out, but I take it you did that for the sake of performance. The Exit door could be better looking, but oh well.
Style: I believe that simplicity is one of the most stylish things out there, the handling is great, the concept aswell. Thumbs up.
Sound: Perhaps a mp3 player would be cool, but that's not the fact. The sound fits pretty well according to the objects.
Violence: n/a
Interactivity: It's a game, it's a platformer, controls work fine, quick response. Perhaps more interactivity with objects would be cool, but hey, you can't have everything.
Humor: n/a
Average: (8+9+6+9)/4=32/4=8.
Conclusion: A nice and entertaining game, shortcomings are caused by the flash platform or they are there to increase performance. A great way to pass some time.
Keep it up!
-Akula