Board Thread:News and Announcements/@comment-31529890-20170831044018/@comment-29279962-20170912010619

I just found out by doing some research. Battle Cats' Concept of Metal Enemies is from a game called Dragon Quest. The Metal Sloth is a reference to Liquid Metal Slime.

Metal Monsters in Dragon Quest have an abnormally high defense so your attacks will do very little damage to them but they have low hp.