One player assumes the role of a single Bolotomus, fighting off an infestation of Snits. The other player commands the Snit onslaught, attempting to ravage the Bolotomus's internal organs. The battles are between the Bolotomus' immune system and the Snits; the Bolotumus player controls immobile Snorgs (organs) and mobile Runnungitms which can attack the Snits, plus Makums which can add more Runnungitms or replace lost Snorgs. The Snits want to find the Spark of Life hidden in one of the organs, but some organs hid explosive Splops instead. Originally published in The Dragon Magazine #11. TSR published three boxed versions of the game which made some changes from the magazine version, primarily a change to the Bolotomus turn order. A further revised version of the game was published in Snits!.