The title card in its current form can often display erroneous tiles if the name of the level is too big (for example, Neo Green Hill Zone displays some tiles for the bubble graphics). Hidden Palace Zone is still listed on the level select, but has been cut and cannot be accessed.None of the unused zone IDs contain any data aside from an associated music ID.Then hold A while selecting a level from the level select. Debug Mode - on the title screen, press C, C, Up, Down, Down, Down, Down, Up.
Two-Player Mode - on the level select, press B + Start.This is currently the first available build that contains a selectable 1P/2P mode on the title screen. The title screen is different in comparison to the final.
