Oil drum

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 have appeared throughout the Donkey Kong franchise as recurring, indefatigable obstacles.

Donkey Kong
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
Oil Drums later appear in Donkey Kong Country. In this game, Oil Drums have two attack patterns. They either expel flames, which can injure Donkey or Diddy, or they will expel enemies (most commonly Slippas). In the level "Oil Drum Alley" Donkey and Diddy must jump from one floating Oil Drum to the next (while they are not spurting fire of course) in order to reach the level's end. Oil Drums that release enemies have a skull and crossbones displayed on it. The ones that release flames have the words "OIL" displayed on them. While any barrel can take out the skull Oil Drums, only TNT Barrels can take out the ones that release fire. There's also an Oil Drum boss named Dumb Drum.

Donkey Kong Land
Oil Drums also appear in Donkey Kong Land. There is no real difference between the Oil Drums of Donkey Kong Country and the ones of Donkey Kong Land.

Donkey Kong Country 2 and Donkey Kong Land 2
In Donkey Kong Country 2: Diddy's Kong Quest and Donkey Kong Land II, a tipped over Oil Drum can be seen in the background of Klubba's Kiosk.

Mario vs. Donkey Kong
Traditional Oil Drums are not in Mario vs. Donkey Kong; however, the Oil enemy from the Game Boy Donkey Kong reappears, redesigned with a drum covering its lower half.

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.

DK: Jungle Climber
In DK: Jungle Climber, there are barrels that resemble Oil Drums called Oil Barrels. However, instead of being obstacles they are a collectible item.

Mario Party 10
A single small oil drum makes an appearance as a decorative feature in Mario Party 10. It can be seen next to a Dice Block Space, located at the right side of the Donkey Kong Board.

Super Mario Odyssey
In Super Mario Odyssey, Oil Drums are found in 8-bit segments in the Metro Kingdom and the Darker Side, using their appearance from Donkey Kong. Touching an Oil Drum causes Mario to take damage.

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.