Hi, this is MASA.
The light arrow obtained after defeating Boss Garo is for use outside the temple.
When you shoot it at the red button at the entrance, the heavens and the earth flip upside down.
There were several places in the dungeon with treasure chests and switches on the ceiling, but I never imagined it would turn out like this.
When the heavens and the earth change, the view changes too. This part is incredibly difficult without any hints.
I have two concerns. Because I haven't picked up the compass, I don't know where I am or the treasure,
and because I haven't played the Song of Time, I have one more day to complete the dungeon.
Until now, I'd been returned to the first morning just before the dungeon, so I had some time,
but this time I'll have to hurry a bit. Or so I thought, but then, oh no, the key!
This video is brought to you by the Wii U Virtual Console.