This guide will show you the locations of all 60 Gold Skulltulas that are found in Majora's Mask. There are 30 to be acquired in the Swamp Spider House and another 30 to be acquired in the Oceanside Spider House.
Swamp Spider House
1. At the bottom of the ramp moving back and forth within the water.
Oceanside Spider House
1-2. On the wall on the ramp.
3. On the ceiling in the lower part of the room. Use Fire Arrows to burn the cobwebs on the ceiling, then use the Hookshot on the target behind it and enter the door.
4. Roll into the first large jar.
5. Roll into the last large jar (burn the spider webs first).
6. On one of the rafters on the ceiling. Climb on top of the crates, then snag it with your Hookshot.
7. Behind the mask on the wall above the stairs (wait for it to come up).
8. While standing on the stairs, look towards the opposite wall. Along the top in a dark crevasse, there’s a Skulltula marching back and forth. Kill and snag it with the Hookshot.
9. Roll into the lone jar next to a door.
10. In a jar atop some crates in the corner of the room.
11. Inside a little hole in the wall. Burn the spider webs and use your Hookshot.
12. Behind a mask near the last door.
13-14. On the west side of the room, there is a bookcase against the wall that you can push/pull to the right. Do so to reveal an alcove with two Skulltulas.
15. On the north end of the room, there are three small bookcases. Pull the outer ones away, then push the middle one to either side to reveal a small hole. Use the Hookshot.
16. Behind a painting, at the northwest corner of the room.
17. Along the ceiling on the north side of the room.
18. On top of a bookcase at the southeast corner of the room.
19. Behind a painting at the southwest part of the room, in a small hole. use the Hookshot.
20. Roll into the brown crate at the north end of the room.
21. There are some canoes leaning up against the western wall opposite the door. NOTE: In the Nintendo 64 version, the Gold Skulltula is right behind the canoes and you have to stand on top of the crates. In the Nintendo 3DS version, it is along the northwestern wall.
22. Behind a spider web on the ceiling.
23. Roll into the brown crate to the left of the door where the boxes are about to start getting higher. Enter the small hole and turn around. It’s above the entrance.
24. Climb on top of the crates on the left side of the door as far as they will go. Use your Hookshot on the target in the ceiling area on the right side of the room. In this upper area, slash the jars to find the last Skulltula in this room.
25. Roll into the giant jar in the corner, under the red mask.
26. Behind the painting (Hookshot) closest to the red mask.
27. Crawling along the dark parts of the ceiling, along the walls. Stand on the table for a good shot.
28-30. Put on the Goron Mask and use a Goron Pound (A + B).