Donkey Kong Barrel Blast
Cranky Kong:
Race him in Candy`s Requests, level 3, mission 24.
King K. Rool:
Race him in Candy`s Requests, level 4, mission 31.
Funky Kong:
Complete Diamond on Rookie.
Lanky Kong:
Complete Topaz on Rookie.
Tiny Kong:
Complete Saphire on Rookie.