Steelhead

The Steelheads are Boss Salmonids that appear in Salmon Run in Splatoon 2.

They attack by throwing green colored bombs that pop up from the top of their head. The bombs appear to look like inflating bags. Their bombs are an instant splat, and their blast range is huge, but Steelheads are quite slow. The only way to kill a Steelhead is to use weapons to blow up their bombs right in their face. The bombs can only be harmed while they are on the steelhead's head.

Trivia

 * They were the first Boss Salmonid to be revealed in the April 12th 2017 Nintendo Direct.