[Dezark]

In the deeper abyss cave, the imps and creepers can both be targeted for headshot by the rifle special attack, but the gremlin's themself can't. So far I've tested it against the horned gremlin, the shaman and normal gremlin.

Edit: Gremlin giant is also apart of this though I don't remember if this is normal for bosses or not, I feel like I've been able to headshot the goblin giant and such before, but I could be wrong.

I wasn't sure if this was intended, just thought it was a weirder interaction for the goblin counterparts on that.