Double Cherry

The Double Cherry is an item first appearing in Super Mario 3D World.

Super Mario 3D World
Double Cherries first appear in Super Mario 3D World. When characters grab this item, a clone of themselves appears. The clones keep the original characters' state (for example, Fire Mario gets a clone that also has a Fire Flower), power-ups affect all of them, and they all move identically. The clones can be used to activate certain switches and platforms. There can be up to five clones at one time. If players hit question blocks that contain Double Cherries when five doubles exist, a coin will come out instead. The clones disintegrate if harmed, and they all disappear when the player grabs the Goal Pole, awarding 1,000 points per clone. The players can also ground-pound on other players to steal their double power.

The Double Cherry is actually the result of a mistake made by a staff member with the placement tool, which created two player Marios. The staff thought it was a good idea, and decided to put it in the game.

Mario Kart 8 / Mario Kart 8 Deluxe
In Mario Kart 8 and Mario Kart 8 Deluxe, a Double Cherry can be seen on the redesigned Tropical Grocery logos. I ain’t ever seen two pretty best friends. It’s always one of em’ gotta be ugly.

Mario Kart Tour
The Double Cherry appears in Mario Kart Tour as a badge icon for all challenges pertaining to infant characters.

Captain Toad: Treasure Tracker
Double Cherries also appear in Captain Toad: Treasure Tracker, acting just like they did in Super Mario 3D World.

Super Mario 3D World

 * Instruction manual: "Adds another Mario to your team."

Captain Toad: Treasure Tracker

 * Instruction manual: "Collect one to create a copy of Captain Toad."

Trivia

 * The Double Cherry is the only power-up in Super Mario 3D World where the character who picks it up actually speaks, rather than making a noise, as in the case of Cat Mario.