Jelly is a simple dungeon exploration game where you have to kill the jelly monsters to prevent them from multiplying too much. As you travel with your blimp from one map to another, you have to find and exterminate the clear jellies that are the source of all the other monsters. You can find crates with healing items and weapons along the way.
You can download the game here:
Here's a short tutorial showing you how to control the game:
Jelly is my entry in the Seven Day Roguelike Contest 2012.
The code is available at https://bitbucket.org/thesheep/jelly. It is written using Python and PyGame.