Bubble Shooter 2 is a game mini-pack which includes Strategic, Arcade, Sniper, and Marathon games. The goal of these games is to pop all the colored bubbles that fill the board. It's a bit like Bust-a-Move or Bubblet, but with rather different and varying gameplay. It is highly addictive. There is an online contest for the best players. Versions for PalmOS 5 (hi-res) and for older devices are both available.