Bold indicates a move that gets STAB when used by Geigeroach
Italic indicates a move that gets STAB only when used by an evolution of Geigeroach
Geigeroach is the only dual-type Nuclear Pokémon that does not have a non-Nuclear form.
Prior to Update 1.2 Geigeroach used Karrablast's cry
Design and inspiration
Geigeroach is based on cockroaches, which are infamous for (among other things) their ability to resist the effects of radiation. As its species name suggests, it also takes inspiration from the Fallout series' radroaches.
Geigeroach comes from Geiger counter (a device used to measure radiation) and cockroach.