Kopter first appeared in Donkey Kong Country 3: Dixie Kong's Double Trouble as a generic villain that would run around certain levels and with his blades he could acheive flight.
Kopter reappered on the wii with the games Donkey Kong Barrel Blast and Donkey Kong Knockout where he was a playable character on both.
Kopter appears as a secret character in the Wii multiplayer boxing game Donkey Kong Knockout. He has good reach but average stats, he rivals Lanky Kong. His special move is to fly over foes and attack from behind. To unlock Kopter you must use kremlings 50 times in multiplayer mode.
King K. Rool appears as a playable character in the multiplayer wii racing game Donkey Kong Racing. He appears as part of the Kremling category.