There are a few unused graphics stored in the game:
• An early question mark for the fake item box.
• A very basic white-colored debug font.
• A GCN Mario Circuit tree, most likely intended to appear on the unused GCN Mario Circuit track.
• A multiplayer select screen with only two cells, called select_game_m_single.
• Shy Guy character icons with nine color variations. This was likely left out because Shy Guy is exclusive to DS Download play and cannot normally be selected as a character.