GameStop has revealed an exclusive retro gaming-themed bonus for fans who wish to pre-order the upcoming Paper Mario: The Thousand-Year Door through its storefront: a free slip case based on the GameCube version. The upcoming release of Paper Mario: The Thousand-Year Door on Nintendo Switch is one of Nintendo's most highly anticipated releases. It is a long-awaited remake of one of the series' most beloved games, bringing the game from the GameCube to the Switch, adding a number of quality-of-life tweaks and remastered graphics.