Fly Host

Fly Hosts are immobile Skull-based enemies in the same family as Hosts. When lowered down, which is their normal state, they are invulnerable and immune to explosions. Occasionally, they will pop up and spawn one or more Attack Flies, briefly revealing a fleshy stem that can be damaged. When this window ends, they return to their lowered state.

Like their vanilla parallels, taking a large amount of damage at once while lowered will cause them to grimace. Grimacing prevents them from firing any shots until they return to normal.