iv'e almost beaten the game (everything but star knives, amebas, and final puzzle) but for some reason the star knives puzzle isn't where it's sopposed to be (doorway to attick stairs, right) so do i have to beat the amebas puzzle (i heard it was optional) or have i just not activated all of the right cutscenes yet

also i ordered the novel from the library so if you can't help i'll just read about the end in that :bye: