Super Mario Adventure - Princess Peach's long lost sister

This game was released in 2001. Due to wildly inappropriate dialogue and cheap CGI, combined with the scandal that ESRB was bribed to release the game as G, the game was put in stores and never sold. Literally no one bought it. If you look hard enough in stores nowadays, you may be able to find a few remaining discs that haven't been repurposed for obscure Pintrest DIY projects.