One person wanders around, another person observes and gives information. Proof of concept.
An Asteroids clone made with Javax.swing where you shoot down windows.
A Tetris clone that recurses on itself every 5 lines. Try to get as many layers into recursion as you can!
A program that takes an image on your hard drive and "draws" it.
A silly game where "bubbles" go across the screen and you have to pop them. Somewhat of a follow up to HackCU IV.