Knockas have two variants, Klasps and Kuchukas. The former climbs across a horizontal rope while hiding inside a TNT Barrel and the latter stays inside a purple barrel and throws bombs at Dixie Kong and Kiddy Kong. In the Game Boy Advance version, they have another variant: Kracka, a ground variant of Klasp, appears in a Pacifica level.
Donkey Kong Country 3: Dixie Kong's Double Trouble![edit]
In Donkey Kong Country 3: Dixie Kong's Double Trouble!, Knockas are common enemies who appear in many levels. Like their predecessor, Klobber, a Knocka hides in its barrel; if Dixie Kong or Kiddy Kong approaches the enemy, it attempts to knock into them. They cannot directly injure the Kongs, so Knockas try and hit them into another enemy or a pit. To defeat a Knocka, the Kongs must jump onto it, pick it up, and throw it. Unlike Klobbers from Donkey Kong Country 2: Diddy's Kong Quest, Dixie and Kiddy do not lose any items if a Knocka hits them.
In Donkey Kong Land III, Knockas, along with Klasps and Kuchukas, are still semi-common enemies. They retain their behavior from Donkey Kong Country 3: Dixie Kong's Double Trouble! The ending of the game erroneously titles Knockas as Krushas.
When Knocka is carried by a Kong in the Game Boy Color version, it changes from green to red, because it uses the same exact sprite and palette as a regular carried barrel. When the Kong puts the Knocka back onto the ground, it changes back to its normal green color.