Multiple player slot glitch

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The multiple player slot glitch (popularly known as the Ice Climbers glitch) is a glitch in Super Smash Bros. 4. The glitch allows for multiple player slots to be controlled by a single controller, creating an effect similar to the Ice Climbers.

Overview

In normal play, a given controller can only be controlling one player slot (such as P1, P2, etc.). Through an oversight on the character select screen, this glitch allows a controller to control multiple different player slots. The result of this is that several "players" in a match can perform the same input at exactly the same time, due to registering inputs from the same controller. They otherwise are completely independent from each other.

The glitch can be performed in any mode that allows amiibo Figure Players: Smash, Special Smash, or 8-Player Smash. It can be performed for several controllers, allowing different sets of player slots to be controlled by different controllers. Team Battles can also be played under the glitch's effects, allowing players to prevent their controlled player slots from hitting each other, similarly to the Ice Climbers.

How to perform

Requirements

• One amiibo that is compatible with Super Smash Bros. 4 (and have been set up such that they can be scanned as Figure Players) for each additional player to be controlled. For example, one amiibo is required to control 2 players, and two amiibo are required to control three. The character is irrelevant as they will later be removed. The same amiibo cannot be used twice.
• The Wii U GamePad.
• An additional controller is recommended as the glitch can be very tedious with the GamePad alone.

Steps

1. Enter into the character select screen in a mode that allows scanning of amiibo as Figure Players. This can be Smash, Special Smash, or 8-Player Smash.
2. Using the controller of choice, enter as a player.
3. Toggle that player slot until it is set to "None".
4. Disconnect the controller. (For the Wii U Gamepad, simply walk out of the console's range.)
5. Scan an amiibo, which will enter a Figure Player over the slot that was just occupied.
6. Repeat steps 2 to 5 for as many player slots are desired to be controlled by that controller, minus one.
7. Enter the Rules screen, and then exit it.

After performing these steps, the controller used will be controlling all player slots that it occupied. This can be performed with multiple controllers, allowing the different controllers to control different sets of player slots.

Explanation

When a controller is disconnected on the character select screen, this normally leaves that player slot present, but open so that the next controller to enter will occupy it. However, when the controller is disconnected while the slot is set to "None", it is possible to scan an amiibo Figure Player to occupy that slot, which does not clear the game's impression that there is still a controller tied to the slot. After re-entering the character select screen by exiting the Rules screen, the game refreshes the state of the player slots, and links the controller to the slots that were occupied by the Figure Players, because they were still flagged as having a controller tied to them.