the hardest dungeon

[Hi no Seijin]

If you're in the room I think you're in, try timing your run to avoid the fireballs and use the Fire Rod.  One of the torches you don't need to be in the way of the revolving fireballs.

[Keaton]

Are you talking about the room with the invisible floor?  Here's a hint for that one-- if you use the Ether Medallion, it shows you where the floor is for a few moments.

[Shadow Ganon]

ahhh cheers mate. I shall try it sometime and see what happens.