The entire planet is dedicated to the playing of games. While the primary focus is on video games, they also have arm wrestling and arcade games where you can win space tickets. When Zim becomes obsessed with scaring Dib, as payback for Dib scaring him earlier, he turns to Gaz for help. Having beaten every video game on Earth and become depressed over this fact, Gaz agrees to help in exchange for access to alien games. So Zim sends her to Arcadikon.