Midosu are a jellyfish-styled reaverbot that always come in groups of three. They can be found in the Nino Ruins, Kimotoma Caverns, and on Elysium.

The Midosu will attack with yellow spark balls which slowly track their target. Additionally they may attempt to physically ram their opponent which will cause damage as well as temporary paralysis should they make contact. At times the Midosu may be invincible, reflecting all shots fired upon it, but it is always possible to hit at least one of the them.

It is recommended that the hit points of all three reaverbots be reduced evenly, though either way eventually there is going to be a single remaining Midosu, at which point it will become more agressive and gain the ability to drop mini-Midosu which hover in place. If shot at or left sitting too long, the miniatures will explode violently.