Omnitrix

It was first mentioned by Azmuth in Map of Infinity. He was planning on giving it to Ben, but it was not complete yet and because Ben's maturity needed to increase before he could do so.

In The Ultimate Enemy: Part 2, Azmuth claimed that he was working on it for 6 years after Ben got the prototype. In the same episode, he gave it to Ben because he was worthy.

Known Aliens Unlocked

 * Cannonbolt
 * Spidermonkey
 * Gravattack
 * Blox
 * Feedback
 * Shocksquatch