Giga Bum is a transformation in Potato Packs, a mod for The Binding of Isaac. It is part of the Potato Pack 4 submod.
Obtained by holding Loot Box Bum, Rock Bum, and Fire Bum at the same time.
Combines all 3 aforementioned familiars into Giga Bum, who automatically collects coins off the ground and opens twice as many chests, smashes twice as many rocks, and puts out twice as many fires as the regular bums would have.
Part of the Potato Pack 4 mod.