- "Hey, buddy! So... Uh, is that yours? Heh heh... Hey, buddy, I never thought you'd get so hooked on fantastication that you'd try to build your own cannon! So... are you gonna give me the tour or what? Looks like you have a serious rig over there..."
- — Fyer
The Sky Cannon is an item from The Legend of Zelda: Twilight Princess. It is a highly advanced device built by the Oocca race, used to reach the City in the Sky. Link stumbles upon the cannon in the basement of the Sanctuary, but it appears to be broken. With the help of Midna, he warps the Sky Cannon to Lake Hylia, where it is repaired by Fyer for 300 Rupees. Once it is fixed, it is used to transport Link to the City in the Sky. A second Sky Cannon is found in the City in the Sky, which in turn can shoot Link back to Lake Hylia.
Interestingly, miniature Sky Cannons can be found in the Oocca Shop.
It is possible that the Groosenator, the catapult that Groose made in The Legend of Zelda: Skyward Sword, is related to the Sky Cannon. The Sky cannon could possibly be an improved version of the Groosenator, as both can send the user into the sky. It is possible that inhabitants of Skyloft could have used this to return from the ground, as Loftwings cannot fly below the Cloud Barrier. After many years, both worlds lost connection, probably caused by the Sky Cannon on the ground deteriorating; this lost connection could also be a factor in the theory of Skyloft inhabitants evolving into the Oocca.
A Sky Cannon appears during one attack of Twili Midna's Mirror move-set and is summoned to fire at enemies.