A downloadable game
Squaball is a 2D platformer and the goal is to complete all 40 levels. On the way there you will encounter many obstacles such as platforms to jump on, spikes, arrows flying at you, spike pits and more.
First of all, you will need to extract game files anywhere you like. You can use WinRar or 7zip to do the trick.
You will also need to install java in order to run this game. You can download it here.
Since the game runs OpenGL, you might also need to update your video card drivers.