Use items on Epona
From Glitches
From the game The Legend of Zelda: Majora's Mask for the Nintendo 64.
Ride to an area with an owl statue, on Epona. You must enter the area riding on Epona, or it won't work. The owl statues accessible to Epona are on the Milk Road and at the Southern Swamp. Now, equip what you want to use on your C-buttons. Z-target the owl statue and save your game. If it worked correctly, when you open up the game, you will still be on Epona and you'll be running forwards. You can now use your C-buttons.
Try testing out different items. But beware, you can freeze your game easily with this glitch. You can use bombs, but you can't throw them - they'll explode on you, but not hurt you. You can not use the fairy sword. But, masks are the most fun to try out. If you become the Deku, Goron, or Zora, then you will be standing in thin air and you can control Epona. If you push A near the character, then you will mount Epona, but you will be floating way above her. Mikau Link can use his boomerangs, but Deku Link can't use his bubbles, and I don't think the Goron can use the Powder Kegs. Don't push start - it will freeze your game. But, one super cool thing is that you can use your Fierce Diety and Giant masks! But, beware - your game may become damaged. If you use the Fierce Diety, you will be stuck shooting arrows, and any C button will make you use them. If you use the Giant mask, Link will be stuck in transformation and you can control Epona. Also, if you pull out your ocarina, then put it away, you can control Epona without Link being on her.
Submitted by: lazio62