Apparently someone found GameShark codes that allow you to change one of the characters in the The Legend of Zelda: Ocarina of Time's Kokiri Village into any object from the game. In particular, there's an Arwing from the Star Fox series hidden in the game's code. The Arwing flies around, attacks, and is destroyable. The GameShark codes are below for those of you interested in trying this out.
OoT (Europe) PAL V1.0
81242e26 0009
81242eb4 013b
81242ec2 0000
OoT (Europe) PAL V1.1
8124b456 0009
8124b4e4 013b
8124b4f2 0000
OoT (US) NTSC V1.0
81244096 0009
81244124 013b
81244132 0000
OoT (US) NTSC V1.1
8124c806 0009
8124c894 013b
8124c8a2 0000
OoT (US) NTSC V1.2
8124cd06 0009
8124cd94 013b
8124cda2 0000
More screens:
OoT (Europe) PAL V1.0
81242e26 0009
81242eb4 013b
81242ec2 0000
OoT (Europe) PAL V1.1
8124b456 0009
8124b4e4 013b
8124b4f2 0000
OoT (US) NTSC V1.0
81244096 0009
81244124 013b
81244132 0000
OoT (US) NTSC V1.1
8124c806 0009
8124c894 013b
8124c8a2 0000
OoT (US) NTSC V1.2
8124cd06 0009
8124cd94 013b
8124cda2 0000
More screens: