Don-chan[1] is the main character of the Taiko no Tatsujin series, and appears as a default playable character in Mario Kart Arcade GP DX.[2] Don-chan has two downloadable palette swaps in the game that dress him in strawberry and knight costumes, known officially as Strawberry Don-chan and Hero Don-chan respectively.
Don-chan's artwork for Strawberry Don-chan is the only character artwork in Mario Kart Arcade GP DX that is entirely two-dimensional. The same applies to all his in-game portraits, even those of normal Don-chan.