-good game, fair idea.
-minor graphics but i bet you'll imptove it (i hope)
-i'm fan of mouse avoiders, mazes and things to do with the mouse not touching walls and block: personally, i loved the new kind of idea you integrated in here! wall showing up and need of avoiding!
-any power ups and other stuff would be cool.
-nice choice of music, but not suitable for the game though.
(anyways i can't recommend any other music so keep it)
a happy (client) plays your game!