Shin Seiki Evangelion: Pikopiko Chuugakusei Densetsu

Mysterious invaders are threatening Earth ... so recruit a group of elite school kids to play video games that secretly train them for the real fight that lies ahead! Does this plan sound familiar? Well, they'd better get a new plan, because the elite schoolkids are Shinji, Rei, Asuka, and Kaworu, and they're too busy playing games to ever get in the fricking robot!

(Source: Dark Horse)