Idea not new, but a mass of levels...
Some of them need fine tuning: u can slip past many of the cops when u stay near a wall.
And: lights don't shine through walls! ;)
A bit boring as it is.
Try different 'enemies' like bouncing balls and spinning ones
Or a energy bar: when who hit 2 many balls u die and collect energy for the bar instead of only points
You could add some bonusses that help to destroy the nasty balls and so on... be creative! ;)