Ninjago is set in modern times, incorporating large cities with skyscrapers , as well as vehicles , large mechanized suits and other futuristic technology. The main focus of the line is the formation and consequent exploits and trials of a group of teenage ninja , battling against the various forces of evil.
The first generation of these was released in 2011—12, and incorporated a two-player battle game, involving exchanges of weapons and cards. The second generation of came in 2015, and consisted of a ripcord mechanism in order to launch the spinner into the air. It contains a comic strip as well as various facts, puzzles, posters, competitions and other activities.