Mario Golf: Advance Tour is an RPG-styled sport game developed by Camelot Software Planning and published by Nintendo for the Game Boy Advance in 2004. The game is the sequel to the Game Boy Color version of Mario Golf.

Robert Seddon has recorded an interesting video about some of the debug rooms and unused areas that can be found in the Mario Golf: Advance Tour game code thanks to the Atrius’s Golden Sun: The Lost Age editor (as both games use the same engine). We can even notice some GBC-alike sprites, probably used as placeholders. The beta” foyer had some different details as you can notice from this comparison: