The tentacles will come after you two or four at a time depending on their health in later Zones. Each tentacle surfaces after 4 beats around the player and will attack cardinally. The tentacles will shake on the beat before they will attack. Each will either die or teleport away upon being hit. The tentacles will resurface a second time if you miss attacking them the first time. In the Zone 1 variant, the Drums have 2hp and the Octoboss has 3hp. In the Zone 2 variant, the Drums and the Horns have 2hp and the Octoboss has 4hp.