This feels more like "compulsion to spin" than "spin to win" when weakening the cores, and it felt a little tedious but bearable. The actual boss fight was decent, with the phases, the attacks, bullets to dodge everywhere.. t'was not bad till I drained their HP to 0 and then for some reason the boss respawned with an HP bar that never goes down. Also for some reason I got no sound on the game page even though there's one comment right below praising the soundtrack. Could be my browser or the project, idk. But for now it feels unfinished unless I missed something. I even tried to replay and destroy 2 cores, the second HP bar of the boss simply doesn't go down.