This enemy is an improved version of the Blue Roundhead Fish. Like its smaller minion, this boss camouflages with the background. As a result, it can only be seen by its multiple eyes. It fires two Bullets, each dealing very high damage and range. This makes it a potentially dangerous enemy, especially as there are five of them. The Bait tactic works against them. They are also shy, just like the Orange Mask Eel, and so, like the Orange Mask Eel, ambushing it with a melee is recommended to nearly stop it in its tracks. Ice type weapons work well, but Thunder and Poison type ones are the way to go. It is also recommended to attack the five eels one at a time, as its LP is low. Players are extremely recommended to grind for its Freeze Charm, as the next boss has a Freeze attack, saving the player from a lot of trouble when they face it.