During the battle, Squirtle's defense will increase, referencing how a Koopa Troopa retreats into its shell rather than be destroyed by getting stomped on. Koopa Troopa is fought on the Golden Plains stage.Koopa Troopa uses a Squirtle puppet fighter and features Green Shells as an item. Koopa Troopa also appears as a Novice-class support spirit, and is featured on the Standard Kart spirit. They have been updated to more accurately match their original sprites from Super Mario Bros. The Koopa Troopas in their 8-bit forms return as background characters in the returning Mushroom Kingdom in the base game. Many locations in Mario games are named after these enemies, such as Koopa Beach and Koopa Park. If you jump on one, its shell will be yours to kick or throw as you please. They may look meek, but they have the guts to leap off any cliff they come across. These turtles are just as common as Goombas in Bowser's army. Beat them or stomp on them to turn them into shells you can throw. Once they see a fighter, they'll go right after them. They're brave little soldiers, and nothing will make them stop in their tracks - not you, not holes, not even cliffs. Defeating them will reduce them to a shell you can throw. They know no fear, bravely charging ahead even if it means falling off a cliff or into a hole. They are just about as common as Goombas. Koopa Troopa (Green) Koopa Troopas are the main representatives of Bowser's army. In Super Mario World and in later games onward, the Koopa Troopas appear walking on two legs instead of four. This, however, can be dangerous, as the Koopa Troopa can emerge out of the shell while carried and can damage the player holding the shell. 3 and in later games onward, if a Koopa Troopa is jumped on and retreats into its shell, it can be picked up, carried around. The kicked shells can also pose a danger if they bounce off of a wall. If the shells are left out for too long, however, the Koopa Troopa can emerge out of its shell. If a Koopa Troopa is jumped on, they retreat into their shells rather than be defeated altogether, which can be kicked as projectiles. The green Koopa Troopas are mostly known for walking in one direction until they are defeated or they fall, while the red Koopa Troopas move back and forth on platforms and turn around at ledges. They are anthropomorphic turtle-like creatures that are commonly seen in their green and red variations. Along with the Goombas, the Koopa Troopas are some of the most recognizable enemies of the Mario series. as a common enemy, and has become a common enemy in later Mario games. Koopa Troopas made their debut in Super Mario Bros.