DK Barrel

From RWP Wiki

A DK Barrel is a type of barrel in the Donkey Kong series. This barrel has a DK logo on it, hence the title.

In the games, the barrel contains the inactive partner of the current playable character (for example, if opened as Donkey Kong, it will contain Diddy Kong and vice versa). A DK Barrel functions as a regular barrel if both Kongs are active.