It's a bit of a surprise that Paper Mario is the rarest complete in-box N64 Mario game. One might assume Mario Party 3 would take the top spot due to the series always being a bit pricey, especially in the GameCube era.
Mario is an Italian plumber who resides in the Mushroom Kingdom with his younger twin brother, Luigi. Their adventures generally center on rescuing Princess Peach from the villain Bowser while using power-ups that give them different abilities.