Captain Rainbow is divided between adventure and action segments. In the adventure mode, you, as Nick/Captain Rainbow, communicate with the residents of Mimin Island, helping with their problems and playing minigames. You earn crystals called kirarin during these interactions -- 20 of which unlock an action scene. In the action mode, Captain Rainbow runs through side-scrolling levels in an effort to grab a falling star, which is used to grant the wish of one of the island's residents (say, a wish not to be so fat), while avoiding enemies called Shadows.
Is there any chance a communication/side-scrolling game about an island of Nintendo characters nobody remembers could be localized? We need to catch our own falling star.
[Image via Gemaga]