Ben 10 Alien Force Alien Creation Challenge Decide Now

Bought this for 5 yr. old son, he loved it, and it was easy to use.
Sadly, as you can see, pieces for aliens are TINY, so they're either found painfully underfoot, or lost completely. Though toy can be used as storage for pieces, the top and bottom 'covers' are not secured- just rests on it, so when carrying around, the covers come off and spill everything out. Cards that come with separate piece purchases also cannot fit correctly into toy, so you'll have to store them elsewhere.

Otherwise, my son seems to like it, though after 2 years, he's lost about 1/2 of the alien pieces. He/we enjoy the Ben10 Omnitrix watch much more, since it's just one big piece, with attachable pieces that are not easily misplaced. Get more detail about Ben 10 Alien Force Alien Creation Challenge.