If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Fill Screen by drawing Bubbles, once you drawn the Bubble it will be removed and score is added.
Be-aware of Bouncing balls that will take once life.
You have 8 Chances to achieve level up qualifying score.
Big bubble gives you more score and if you complete level using less bubble you will get more score.
This game is played with mouse only.