"Slippa: Scaly, slithering snakes that like to live in oil drums."
- —Donkey Kong Country Manual, pg. 29
Donkey Kong Country
In their debut appearance, Donkey Kong Country, Slippas appear in four levels: Reptile Rumble, Millstone Mayhem, Elevator Antics, and Misty Mine. Slippas mostly appear in cave levels except Millstone Mayhem, which takes place in a temple. Slippas move by quickly slithering on the ground. Donkey Kong and Diddy Kong can defeat Slippas by using any attack, including rolling, jumping, or throwing a barrel at them. When a Slippa is defeated, it makes a hissing noise. In Misty Mine, there are some Black Drums that release an indefinite number of Slippas.
In the Game Boy Advance version, the Kongs can obtain a photograph of Slippa if they roll into three of them in a row.
Donkey Kong Country novel
A single Slippa appears as a minor antagonist in the Donkey Kong Country novel. As the Kongs explore the Abandoned Mines, Slippa and Army ambush the group. Slippa proclaims that "thessse minesss are oursss" and attempts to attack Diddy, but Diddy stomps him with a double jump. Slippa then escapes back into the darkness.
Donkey Kong Land
Slippas reappear in Donkey Kong Land, where they have slightly different role than in Donkey Kong Country. They appear in many more levels and in a wider variety of environments, including mines, jungles, and skyscrapers. Slippas sometimes pop out of baskets.
In Riggin' Rumble, Slippas slither down the ropes until they reach the bottom. These Slippas are invincible, and even if either Kong rolls into them, they are injured by the Slippa.
Slippas appear in fifteen levels:
- Jungle Jaunt
- Freezing Fun
- Simian Swing
- Deck Trek
- Tire Trail
- Riggin' Rumble
- Tricky Temple
- Snake Charmer's Challenge
- Mountain Mayhem
- Spiky Tire Trail
- Kong Krazy
- Construction Site Fight
- Fast Barrel Blast
- Skyscraper Caper
- Oil Drum Slum
- Slippa was originally known as "Hister" early in development in Donkey Kong Country. Slippas also have an unused death animation.