Boss Key Early: Edit
After entering the boss key room (requires Zelda's Lullaby), by taking damage from a fire slug, the boss key chest can be opened during invincibility frames.
Boss Door Early: Edit
In the room above the goddess statue, use the Actor Glitch to unload the platform that lowers down into the goddess statue room. You can then megaflip to a part of the statue, and from there hookshot to within the head and to the boss door.
Boss Key Skip: Edit
Ledge clip and superslide: Edit
Ledge clip and hammer recoil: Edit
Hookshot jump and hammer recoil: Edit
Hookshot jump off of the chain, and hammer off of it to recoil to the boss room loadzone.
Hover at the boss door: Edit
If you get to the boss door (see Boss Door Early), you can hover and jumpslash into the door. This is used in low% runs with sideflip hovers.