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Donkey Kong franchise
Barrel Cannons appear in all Donkey Kong Country and Donkey Kong Land games. In these games, if a Kong goes into the barrel, it will either stay still, move horizontally or vertically, or spin around and the Kong will have to press a button at the right time (taking any obstacles, items, and/or other Barrel Cannons into account) to blast to their destination.
They come in many varieties in the Donkey Kong Country games, especially in the first three games. These include Arrow Barrels, Blast Barrels, Tracker Barrels, Rotatable Barrels, Steerable Barrels, Booster Barrels, and more. In Donkey Kong Country Returns, Donkey Kong Country Returns 3D, and Donkey Kong Country: Tropical Freeze, Barrel Cannons only come in four varieties: Barrel Cannons, skull Barrel Cannons, Blast Barrels, and skull Blast Barrels. The skull versions destroy themselves when they fire the Kongs. In Tropical Freeze, Barrel Cannons gain a more rugged appearance, having chipped or faded paint in many places.
In Donkey Kong 64, Barrel Cannons take the appearance of red Blast Barrels, though most are not automatic. They are only used by Donkey Kong in the Baboon Blast courses, as well as during the final battle with King Krusha K. Rool.
Barrel Cannons can be encountered in New Play Control! Donkey Kong Jungle Beat, replacing the cannon flowers from the original GameCube game. They are completely stationary in this game, and once entered, they will only shoot Donkey Kong in one direction. In order to blast DK out of a Barrel Cannon, the player has to swing the Wii Remote.
They also appear in the game Donkey Kong Barrel Blast, along with new varieties in red and gold. In DK: King of Swing, they appear where the player has to jump into a cannon, as it turns left to right, and press the L or R button to burst into the air. In DK: Jungle Climber, they are easier to aim with.
Mario vs. Donkey Kong series
Barrel Cannons appear in Mini Mario & Friends: amiibo Challenge as part of Mini Donkey Kong's levels. Barrel Cannons display a light-emitting disc, which turns red when Mini Donkey Kong is inside a Barrel Cannon. The game contains stationary Barrel Cannons, which spin around continuously, as well as Barrel Cannons that do not rotate but follow certain paths. Mini Donkey Kong gets shot from a Barrel Cannon if players tap the barrel's disc using the GamePad. Alongside Barrel Cannons, there are also Blast Barrels.
Mario Kart series
In DK Mountain, which appears in Mario Kart: Double Dash!! and returns in Mario Kart Wii, there is a giant Barrel Cannon (referred to in the former as Donkey Cannon and in the latter as DK Cannon) that blasts competitors to the top of the mountain. DK Summit / DK's Snowboard Cross, also in Mario Kart Wii, features a Barrel Cannon. Another Barrel Cannon appears in the Mario Kart Wii and Mario Kart 7 course Maple Treeway, where it serves the same function, but does not include the DK initials. Another Barrel Cannon is featured in the Mario Kart 8 and Mario Kart 8 Deluxe overhaul of N64 Yoshi Valley replacing the Long Route.
Mario Party series
Mario Party 9
Barrel Cannons are present in Mario Party 9. In DK's Jungle Ruins, if the player lands on a Lucky Space, they will be launched to a floating island to increase their Bananas counter. Many Barrel Cannons appear in the boss minigames Diddy's Banana Blast and DK's Banana Bonus, where the players use them to reach Bananas.
Mario Party 10
Mario Party 10 marks the appearance of just one giant barrel cannon on the Donkey Kong Board. It is located at the top of the board; whenever the player's amiibo comes across this cannon, he or she will be offered the possibility to enter the cannon and get launched to one of the spaces the other players are on.
Mario Party: Star Rush
Super Smash Bros. series
In Super Smash Bros. and Super Smash Bros. Melee, it appears in the Kongo Jungle stages, where it moves back and forth and occasionally rotates underneath the stage. If a character falls into the cannon, they can press the A button to fire themselves out of the cannon in the direction of the arrow. If they wait too long, they will be shot out anyway. Since the cannon sometimes rotates, this action can sometimes save players from falling, or it can launch them to their doom. Only one character may occupy the Barrel Cannon at any time. The Melee version can also be used by Klaptraps that fall into it; these baddies give damage if the cannon is touched while they're in it, or if they're fired towards the stage.
In Melee, it is also a usable item. Aside from always rotating and destroying itself upon firing, it works just like the stage variation. This item is quite heavy, thus only Donkey Kong can move around freely while holding it. When thrown, the barrel rolls until it touches a character or falls off the arena. If anyone else touches the barrel while it is occupied, they will take moderate damage. Also, Barrel Cannons disappear much faster than any other item if left alone.
In Super Smash Bros. Brawl and Super Smash Bros. for Nintendo 3DS / Wii U, they are no longer a regular item. Instead, several Barrel Cannons can be found in several levels of the Subspace Emissary and Smash Run. Characters use these to get shot up higher or break Brick Blocks in their way. The Barrel Cannon from the first Kongo Jungle stage also returns with the stage in the Wii U game.
Mario Baseball series
Barrel Cannons make a minor appearance in Mario Super Sluggers in adventure mode. When the player travels to DK Jungle, Donkey Kong meets him and says that there is a waterfall too far for him to jump across. Nearby, in a bush, is a barrel cannon which will launch the player across this waterfall.
Mario & Luigi: Bowser's Inside Story
In Mario & Luigi: Bowser's Inside Story, Mario and Luigi obtain a Special Attack called Yoo Who Cannon where the bros. jump into Barrel Cannons and are shot at enemies. This same attack was planned for the sequel but was removed.
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