September 22, 2005
The game features various unlockable outfits for Jill, the player's character, to wearin the menu screen (but not in gameplay). The one called "Blue Overalls" is actually Mario's clothes, most notably featuring the big yellow buttons. The shirt has short sleeves, since it's based on Mario's latest main game, Super Mario Sunshine. She wears no cap though.
Additionally another outfit is called Frog Suit, so it may be a reference to the Frog Suit from Super Mario Bros. 3, but it actually looks very different.
Copyrights for both series are held by Nintendo.