|This article belongs to the Reboot Continuity.|
The 11th Alien: Part 1 is the forty-ninth episode of Ben 10.
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- Shock Rock makes his debut.
Omnitrix Alien Debuts
- Four Arms (intended alien was Heatblast; cameo)
- Heatblast (offscreen)
- Shock Rock (x2; first appearance)
- This episode aired as the 11th episode of Season 2 and the 51st episode overall in U.S.
- When Ben pictures himself as being elderly, he is voiced by Yuri Lowenthal. This is a nod to teenage Ben being voiced by Yuri in the original continuity.
- Gax is technically Ben's 11th alien, with Shock Rock being the 12th alien unlocked.