The blue Ken represents Munchy Monk, a martial artist who wears a blue martial artist uniform.
The white Kirby minions and the Food items represent the round dumplings which Munchy Monk eats in his minigames in the Rhythm Heaven series.
The stage represents the main setting of the endless minigame "Munchy Monk" in Rhythm Heaven Fever, which takes place inside a moving train.
The music track references that "Munchy Monk" is a food-themed minigame in the Rhythm Heaven series.
Ken's favored Shoryuken references the main gameplay of "Munchy Monk", where the titular character must slap his wrist precisely to launch the dumplings into the air and eat them.
