If the game runs slowly, try lowering the particles or resolution.
This is a game I worked on for the ninth GMC Jam. This version is much more complete and doesn't have a terrible memory leak. The game itself is about a ship that traverses a labyrinth of rooms in a giant spaceship.
The slimes come in to shoot you with bullets and generally make the end obstacle a bit harder. But you can fight them with the game's randomized loot.
There are over a dozen variations with the weapon properties. Enemies also are randomized: some of their shots can slow you, some bounce off walls, and some home in on you. The levels themselves are randomized, Binding of Isaac style, and there are four levels in total. Also, this game is hard. As a member of the roguelike genre, it is not meant to be beaten on the first try and death is permanent. But if you persist, you just might make it.
Edited by GameRoom, 17 February 2013 - 01:35 AM.