rem on Nostr: Any Zelda, Link to the Past players know what's going on here: I've already defeated ...

Any Zelda, Link to the Past players know what's going on here: I've already defeated Agahnim in Ganon's Retreat, but having died and restored from save, I've worked my way back through the castle and now I'm trapped in this room with no one to defeat.

Is...this a bug? Or do I need some magic to get out (I tried the flute but bird didn't come)