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Oil Drums, also known as Oil Cans, are cylindrical metal drums filled with oil that have the ability to produce Fire creatures or other monsters from themselves. They are indefatigable obstacles that recur throughout the Donkey Kong franchise.
Donkey Kong franchise
Oil Drums first appeared in the Donkey Kong arcade game. Here they are found in several levels and are quite harmless themselves. However when a blue barrel ends up being burned up inside them, they will produce Fire which can harm Mario.
Donkey Kong Country and Donkey Kong Land
Oil Drums later appear as obstacles in Donkey Kong Country and Donkey Kong Land. They retain their ability to expel flames. They are the main feature of the first Kremkroc Industries Inc. stage, Oil Drum Alley, but they also appear in Torchlight Trouble. Some Oil Barrels continuously expel flames, while others do so every few seconds. They are either positioned on the ground or in mid-air. In parts Oil Drum Alley, Donkey and Diddy are required to cross abysses by hopping from one floating Oil Drum to the next.
Black Drums are similar enemy obstacles to Oil Drums. Appearance-wise, they are more slim and have a skull and crossbones emblem printed on them. These obstacles emit an unlimited amount of a certain enemy. Dumb Drum is a larger boss variant of an Oil Drum, but its attack pattern is based on that of a Black Drum's.
Donkey Kong Country 2 and Donkey Kong Land 2
DK: Jungle Climber
Mario vs. Donkey Kong series
Mario vs. Donkey Kong
Mario vs. Donkey Kong 2: March of the Minis
In Mario vs. Donkey Kong 2: March of the Minis, Oil Drums work the same as in the original Donkey Kong, where if Donkey Kong throws a barrel and it lands in an Oil Drum it will create a Fire enemy. They only appear in the final battle against Donkey Kong.
Mario Party 10
Super Mario Odyssey
Mario + Rabbids Kingdom Battle
One of Rabbid Cranky's Barrel Bolts in the Donkey Kong Adventure DLC of Mario + Rabbids Kingdom Battle is styled after an Oil Drum from its original arcade appearance. Its description even states that foes will not turn into flames with eyes when hit by this, a reference to the Fire enemies.