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Mechakoopa SSB4.jpeg
Bowser Jr. using this move in Super Smash Bros. for Wii U.
User Bowser Jr.
Universe Mario
Article on Super Mario Wiki Mechakoopa
Deploy a Mechakoopa that will explode when it hits an opponent.
Super Smash Bros. for Wii U's Quick Guide
Deploys a Mechakoopa that explodes if thrown, attacked, or just left alone.
—Description from Ultimate's Move List

Mechakoopa (メカクッパ, Mechakoopa) is Bowser Jr.'s down special move. When used, a Mechakoopa exits the Junior Clown Car, then will start to walk forward along the ground.


The Mechakoopa marches until the colliding with an enemy, knocking them back before exploding. It does 2% when jumping and 7% explosive damage when it explodes for a total of 9%. It deals weak diagonal knockback. If the Mechakoopa walks to a ledge without hitting anyone, it will turn around, and if it isn't activated after about five seconds, it will explode on its own. If a player picks up the Mechakoopa it will reset the timer. The Mechakoopa counts as an item that can be picked up and thrown back at the user, similar to Diddy Kong's Banana Peel. Bowser Jr. can only have one Mechakoopa out at a time; the move will fail if he uses it again before the Mechakoopa is gone.


Special Move customization was added in Super Smash Bros. 4. These are the variations:

1. Mechakoopa 2. Impatient Mechakoopa 3. Big Mechakoopa
"Deploy a Mechakoopa that will explode if thrown, attacked, or just left alone." "Launch a Mechakoopa a fair distance. It explodes shortly after landing." "A large, powerful Mechakoopa. Walks past enemies, so throw it to make it go boom!"
  1. Mechakoopa: Default.
  2. Impatient Mechakoopa: The Mechakoopa is flung from the Car, functioning more as a horizontal projectile, and will quickly explode upon hitting the floor. The explosion does a mere 4% damage, and hitting a player with the Mechakoopa prior to explosion does 1%.
  3. Big Mechakoopa: A much larger Mechakoopa is deployed, which slowly walks a short distance and explodes on its own. It can be picked up and thrown. Thrown, it will do 1% damage and explode for 15% damage. Can KO around 140% damage.


No. Image Name Type Class Cost Ability Series
Mechakoopa Spirit.png
Mechakoopa Support ★★ 1 Lava-Floor Resist Super Mario Series


Artwork of a Mechakoopa from Super Mario World.

Mechakoopas debuted in Super Mario World, appearing in Bowser's Castle and being thrown by Bowser out of his Koopa Clown Car during the final battle. Mario can disable them by stomping them, though they will return to normal after some time. When they are deactivated, Mario can pick them up and throw them; this is the only means of defeating Bowser in that game. They appeared mostly in spin-off games over the years before redesigned versions showed up as normal enemies in Super Mario Galaxy before returning to their familiar design in New Super Mario Bros. Wii.


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