In Ben 10 Alien Force, transforming into the intangible, ghost-like Big Chill gives Ben the ability to pass through objects, become invisible and drop the temperature to near absolute zero. Buildable by kids aged 5+, the alien includes glow-in-the-dark eyes and chest Omnitrix. Collect all six LEGO Ben 10 Alien Force aliens and combine them into your own morphed super alien! For ages 5 years and over.