Spike

Spike is the Framade-mutated form of GoodPuffer, which emerges when GoodPuffer comes into contact with Framade. This form is rarely seen, much like Fin, having appeared only about six times in total, with one instance being a Spike-Fin combination. Despite the transformation, Spike retains GoodPuffer's personality and does not attack his friends, such as AngeredFish, Gary, and Joel. Spike's appearances typically coincide with system shutdowns.