Sets in the theme are based on the twelfth season of Ninjago, subtitled Prime Empire. Prime Empire, called Unfinished Adventure Game, is a legendary arcade game programmed and tested 30 years ago. The ninja entered Prime Empire to rescue the people who were captured inside the video game. The Key-Tanas are the collectible items within the sets, and most of the sets are based on the ninja's new vehicles from this season. Arcade Pods were also introduced.
2020 LEGO Sets
In 2020, despite the challenges posed by the COVID-19 pandemic, LEGO continued to thrive, delivering some of the most collectible and investment-worthy sets in recent years. Many of the best-performing sets came from Creator Expert and LEGO Ideas, solidifying their status as top themes for long-term investment potential.