This great Ben 10 play set features fun activities for children! Vehicle opens up to reveal an Alien Laboratory. Make clay moulds of each of the 10 Aliens (clay included), view animation disks from the Alien Collection with the viewer that is built right into the Rust Bucket (3 disks included), open up the beaker and drop in one of the Transforming Alien Rocks - add water and watch the rock bubble and fizz to then reveal a 3cm collectible figure (includes 2 Transforming Alien Rocks).