The e-Reader was a peripheral released for the Game Boy Advance in 2002 that unlocks special content for certain Game Boy Advance and GameCube games. Content includes mini-games, different worlds, or full and complete NES games. The content was added or unlocked by purchasing e-Reader cards and swiping them in.
Among others, Pokémon Battle Arena and Animal Crossing cards were released. The Pokémon Battle Arena cards allowed you to fight a large amount of predetermined battles for Pokémon Ruby and Sapphire, whereas the Animal Crossing cards were used for the GameCube version of Animal Crossing and unlocked gifts.
In Spring 2004, Nintendo discontinued the e-Reader outside of Japan due to low sales. However, it was supported in Japan until September 2008. The Game Boy Advance family was discontinued a year later.
The NES series consisted of 13 different games, with each pack containing five cards to scan before you could actually play it. The first card gives a flavor description for the game and controls; the second card gives some how to play instructions; the third card gives the scoring measures and any warnings to the player; the fourth card gives either tips or info on a separate mode with point tallies; and the fifth card gives either tips or item descriptions.
The cards were released in three different series.
Released on September 16, 2002 and included:
Released on November 12, 2002 and included:
Released on April 21, 2003 and included: