K-Class armature isn't that durable. It's not meant to be, not when they're supposed to explode. So the first punch lands a good blow into his midsection, denting his plating and making Fulcrum stumble back, almost forcing him off his feet.

"I think you and I have two verrrry different definitions of fun," Fulcrum mutters through his groan of pain, which is not a thing he does well with.

Running away didn't work. Retaliating didn't help.

"SPINISTER!!" he shouts as loud as he can, definitely knowing that he can't get himself out of this one. Not on his own.