Rug Rats is an updated release of "Wiping" five months after the initial game. The core gameplay is identical but with a few tweaks to the visuals and gameplay. The rug palette is very different, the default high score is 100,000 instead of 30,000, bonus items remain visible throughout gameplay and are all worth 1,000 points, instead of 500 - 1,500 points, collecting all bonus item no longer stuns all remaining monsters as you must first collect the crown (5,000 points) located in the middle of the screen, and the carpet can now be approached and is functional from all angles.
In Slime, the player controls a small warship, which moves horizontally on the bottom of the screen. It is surrounded by an Absorber on either side of the bottom of the screen. Alien vessels will drop slimes from the heavens, and the player must shoot out wedge-shaped barricades, with the hope of directing slimes into the Absorbers, or at least preventing them from reaching the sea. While doing this, alien spaceships will intermittently plug your Absorbers, or shoot down your wedges. As slimes reach the ocean, the sea level will rise, and when the seas reach the top of the screen, it's game over.