Amped Octostamp
From Inkipedia, the Splatoon wiki
Amped Octostamps are Octarians in Return of the Mammalians. They are a variant of Octostamps.
Description
Amped Octostamps look similar to Octostamps, but they are distinguishable because of the headphones they wear. Their attack pattern is similar to the Octostamp's, with the only difference being that when they land, they cause a shockwave, similar to the ones created by the Wave Breaker, which deals damage to the player. They wear a protective plastic cover on their weak spot which makes them tougher.