NPCs were never meant to see their true selves- the source of their very own existence. For Gummigoo, one bad collision was all it took to leave his world; to discover everything that ever was... was nothing more than... a model?
Gummigoo is an alligator shaped bandit, a part of one of Caine's little quests, made to "entertain" the humans stuck in the computer game. Whatever life he lived as an NPC- if any at all, was no more than a shattered reality by the end.
Even still he cares for his pals.