This Mario papercraft is the Koopa Troopa (usually Koopa, occasionally Troopa, Japanese Nokonoko), based on the game Mario Kart: Double Dash!!, the paper model was created by sabidiet. There is another Mini Koopa Troopa at the site. Koopa Troopa is one of the characters in Mario Kart: Double Dash!!, and is Lightweight Class Character. Although mostly following Bowser's orders to go and stop Mario, he is now going against Bowser, swerving around corners and leaving his opponents eating their dust! Koopa Troopa also owns his own kart, the Koopa Dasher, along with having Triple Red Shells and Triple Green Shells as Special Items.
Mario Kart: Double Dash!! is a video game developed and published by Nintendo for the GameCube. It combines features from earlier Mario Kart games, such as Super Mario Kart, Mario Kart 64, and Mario Kart: Super Circuit. This game is the first and only game in the series that features the ability for two players to ride on a kart: one to drive and one to use items. Mario Kart: Double Dash!! is the fourth game of the series overall.
You can download the paper craft model here: Mario Kart: Double Dash!! - Koopa Troopa Free Papercraft Download