Rockkroc

Rockkroc is a rare variety of a Kremling found only in the game, Donkey Kong Country. Rockkroc, unlike other Kremlings, has brown rocky skin and red eyes.

Summary
Rockkroc dwells in only one area of Donkey Kong Island; Monkey Mines, specifically in the level Stop & Go Station. Rockkroc is the main enemy and hazard in Stop & Go Station which is filled also with Klaptraps. Rockkroc's main method of attack is to rapidly run back and forth. Rockkroc is invincible in the level when the Stop & Go Barrel says "GO" on it and the level illuminates to green. Donkey and Diddy Kong cannot avoid or attack them at all. Jumping over Rockkroc merely leaves the two open for it to turn around and get the two primates. The Kongs must utilize Stop & Go Barrels in order to stop Rockkroc. By touching a Stop & Go Barrel, the area illuminates to red, indicating "STOP" which also causes Rockkroc itself to become dormant. Later in Loopy Lights, the Kritters located within the level has their skin appear in a similar color to Rockkroc's.

Stopping it only lasts for a short amount of time, and can easily quickly run into one of the Kongs. When stopped, the Rockkrocs grumble as if weakened and curl into a boulder-like balls to shield themselves. Donkey Kong can use his Hand Slap or a Vine Barrel to defeat a curled-up Rockkroc in the Japanese version and the Game Boy Advance version of Donkey Kong Country.

Literature
In the Donkey Kong Country adaption, written by Michael Teitelbaum, Rockkroc is one of King K. Rool's leading Kremlings, along with Klump, Krusha, and Kritter. The four of them appear on Gangplank Galleon as K. Rool announces his new plans to wipe out the Kongs and take over Donkey Kong Island. Donkey and Diddy Kong overhear their plan, and Rockkroc is defeated by Diddy, who merely performs a jump attack on him. This reveals that under normal light, Rockkroc loses its super strength, and becomes as strong as any normal Kremling.

Trivia

 * Rockkrocs are the only type of Kremling from Donkey Kong Country to never appear in the Donkey Kong Country animated series in any way, shape or form.