If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In this game you have to play as a little angel and destroy the falling balls in every level to score highest points. To do this, first shoot and break the balls into smaller ones and then destroy them completely. Also don't allow them to drop on your head otherwise you will loose a life.
Left / Right Arrow Keys - Move.
Spacebar - Shoot.