He first appeared in Super Smash Bros.'1P Game as a giant opponent. DK has little knockback when attacked, while his own attacks send opponents flying, making him a formidable opponent on higher difficulties. Because of this, players face him with two regular-sized allies. It is also possible to play as him using the Debug menu code or change 1 player to specific character.
Extra appearances include an immensely large version (over twice as large as the normal Super Mushroom DK) that appears in Event 25: Gargantuans against the player controlling a similarly-sized Bowser, plus a super tiny Mario and Peach.