Seika Relay

Seika Relay (青果リレー) is an unused and unfinished rhythm game in Rhythm Heaven Fever. It is only accessible in the Japanese debug menu.

Trivia

 * Harry Onion and the onion from Rhythm Tweezers appear in this minigame, abet only with cartoony eyes.
 * Judging from its placement in the debug menu, Seika Relay is likely to be an Endless Game.