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Krackas are a variant of Knockas wearing a TNT Barrel in the Game Boy Advance port of Donkey Kong Country 3: Dixie Kong's Double Trouble! They are the on-land counterpart to the rope-clinging Klasps, and are the game's equivalent of Kabooms from Donkey Kong Country 2: Diddy's Kong Quest. Krackas only appear in the Pacifica level, Stormy Seas, which itself is a level only appearing in the Game Boy Advance port.
Krackas have the same attack pattern as regular Knockas; they chase after Dixie and Kiddy Kong, trying to bash into them. Unlike regular Knockas, Krackas explode upon contact with a Kong, hurting the lead one in the process instead of knocking them back. If the Kongs jump on a Kracka, it temporarily retreats into its TNT Barrel and can be used as a regular TNT Barrel. After a few seconds, it re-emerges from its TNT Barrel to continue chasing the Kongs.