- "It's Hero Time!"
- ―Ben's catchphrase.
Ben's physical appearance has changed from a 10 year old to a 16 year old. However, he retains brown hair, green eyes, pale skin, and is quite skinny for his age, though he shows a lot of muscle definition due to being athletic.
At the age of 10, he came in possession of the Omnitrix, a watch-like alien device containing genetic material from numerous different species, which allows him to temporarily transform into a number of alien forms. During this time he battled foes such as an Osmosian named Kevin Levin and the Chimera Sui Generis known as Vilgax.
About a year later, Ben became obsessed with a Conductoid named Feedback, though the form was destroyed by a mutant Galvanic Mechamorph named Malware. Sometime later, he took off the Omnitrix for an unknown reason.
Less than four years, Ben put back on the Omnitrix, which recalibrated and assumed a new form. However, he was forced to destroy the Omnitrix to prevent Vilgax from weaponizing it and obtained the Ultimatrix, an Omnitrix-type device with the ability to evolve his aliens into more powerful forms.
By age 16, Ben became world-famous and was given a second Omnitrix after Azmuth deemed him worthy of it; the one he had used prior was revealed to be a prototype.
Powers and abilities
Canon Omnitrix Aliens
- Gax is exclusively available in the Reboot Continuity.
- Eon is exclusively available in the Race Against time Timeline.
- Decimus Prime is exclusively available in the Classic Continuity.
- These aliens are exclusively available in the Ben 10,000 Timeline.
- Archfiendzarro is exclusively available in Benzarro's Timeline.
- The Darkness is exclusively available in Nega Ben's Timeline.
- Trunk Man is exclusively available in Dimension 23.
- This alien is exclusively available in the Gweniverse.