Editing Cannon

When a cannon has been unlocked, the metal hatch slides away, revealing a square hole in the ground. In order to use the cannon, Mario needs to only drop down into this hole. The cannon then rises out of the hole, and the player can use it to fire Mario to previously unreachable areas. When Mario has entered a cannon, a targeting reticle appears on the screen, allowing the player to aim the cannon where they want Mario to go. Once the cannon is locked on target, the player must press the {{button|n64|A}} button to fire (or {{button|ds|B}} in the remake). The player should aim slightly higher than the area they wish to shoot Mario to, as the height of Mario's trajectory tends to gradually decrease after he is fired from the cannon. Mario will not take falling damage if he is fired from a cannon. If the player collects a [[Wing Cap]] before entering a cannon, the player can fly around as [[Wing Mario]] immediately after being fired from the cannon, without needing to perform a [[Triple Jump]] to take off first. Cannons cannot be unlocked until after the [[Big Bob-omb on the Summit|first mission]] is completed.

There is also a cannon outside the [[Peach's Castle|Mushroom Castle]], though it is covered by a small metal grate as opposed to a metal hatch. The cannon can be unlocked and used only after Mario has collected all 120 [[Power Star]]s in the game. When the cannon is used, the player is able to access the roof of the Mushroom Castle, where [[Yoshi]] and a hidden [[Wing Cap]] await. For the DS version, if 150 Power Stars are collected, Luigi can capture the green minigame rabbit from the roof.