This is a game I made for my object oriented proramming class (OBJECTP) in DLSU back in 2007. Took me about 2 weeks to develop. I also submitted it to a Game Development competition called U Got Game X3M XPO sponsored by Matahari studios and won 2nd place.
The game was made purely in Java without any 3rd party libraries. Everything is rendered using BufferedImage.
The game is available for download, but you will need the Java Runtime Environment installed.