Mario vs. Donkey Kong e+ is an e-Reader Cards set released in 2004. There were five cards released, and they were only given to 1,000 people who competed in a competition in Japan. The game was not made available in America. Each card, when scanned, would give the player an extra level in the Game Boy Advance video game Mario vs. Donkey Kong. While there were 12 spaces available, Nintendo only released five levels. A sixth game (actually the first card to be released) wasn't available in this set.