Amiibo tap: Nintendo's Greatest Bits

amiibo tap: Nintendo's Greatest Bits, known in the British English version as amiibo Touch & Play: Nintendo Classics Highlights, is an application for the Wii U in which players can scan amiibo to play trial versions of various NES and SNES titles. It was released on the Nintendo eShop as a free download on April 23, 2015 in Japan, on April 30, 2015 in Europe and North America, and on May 1, 2015 in Australia.

Gameplay
When the player scans an amiibo using the Wii U GamePad's NFC reader, a specific NES or SNES game is unlocked, each of which allows the player to play three-minute highlights of various points in the game each time they scan the amiibo designated to that game. The player can switch between different scenes by scanning the same amiibo multiple times. Each scene is 180 seconds (three minutes) long. The games assigned to each amiibo are completely random, and are not always based on the amiibo character's series. (For example, scanning a Mario amiibo may unlock a game unrelated to the Mario franchise.)

List of Mario games
There are 12 Mario games included, with each game having its own number of scenes.

2-Player Game
This glitch only works on games that supported turn-based multiplayer on their original consoles (i.e. Super Mario Bros., Super Mario Bros. 3, Super Mario World, Wrecking Crew). First, the player must enter any scene of a game and return to the title screen, usually by way of Game Over. Then, they must choose "2-Player Game". When the first player dies or completes the level, they must pass the controller to the second player. The glitch ends when the scene ends or changes.

This glitch is also possible in simultaneous multiplayer games (i.e. Super Mario Bros. 3's Battle Mode, Super Mario Kart, Dr. Mario, Yoshi), but Player 1 plays as both characters. This allows access to normally unplayable modes, like Match Race and Battle Mode in Super Mario Kart.

This glitch is likely caused because the P1 and P2 controllers are both linked to the Wii U GamePad to prevent more controllers from being used.