Super Mario Bros.: The Lost Levels returned Red Shells along with Green Shells.
Little or nothing was changed about the behavior of Red Shells in this game from Super Mario Bros. 2 (which calls them "Turtle Shells"), they are the only type of shells and are found in grass rather than on Koopa Troopas.
Red Shells are red Koopa Troopa shells that first appeared in Super Mario Bros.
Green and Red Yoshis will spit out fire upon eating one.
Also, Red Shells can only be obtained by stomping a Koopa Troopa out of its shell, making it become a Beach Koopa.
Unlike the green-shelled Koopa Troopas, they did not fall off cliffs and simply turned around when reaching a ledge.
They are the second most common shell, after Green Shells.
This is unlike in older Mario Kart games, where Red Shells, just like Green Shells, fall when thrown in the air, and disappear when they go into launching areas.
In Mario Kart 8 and Mario Kart 8 Deluxe, they follow the same rules as in past installments and can also come in singles or triples.
However, Red Shells travel slower in the Deluxe version when they lock onto their target, allowing players to outrun them in 200cc.
Triple Red Shells can also appear for AI in Mario Kart 8 Deluxe.
It can also be thrown at underwater creatures and home in on them as well. Little or no change has occurred between the game and its predecessor regarding functions. Once thrown, the shell produces a trail of coins behind it. U, where they act in the same way as in the previous games, Giant Red Shells also appear.
The other variety of shell that appear in Super Mario Galaxy are Gold Shells, which act like Red Shells when thrown. Red Shells appear in Super Mario 3D World not as a item, but as a color swap for the Green Shell when Mario is inside it. They also appear in the second Boom Boom battle, here Boom Boom uses them to attack Mario while he uses his spin attack.
The Red Shell's first appearance was in Super Mario Bros. Red-shelled Koopa Troopas appeared later than green-shelled Koopa Troopas.