For those who say upgrade is something other than Nanites : r/Ben10

Rex, Wiki

Generator Rex: Nanite Master - How Many Rounds Can You Last Against Biowulf (CN Games)

Rex has the ability to grow various machines out of his body. He can also use his nanites to communicate with and control nea…

Generator Rex Nanite Animation by GeneratedSentience on DeviantArt

Generator Rex Nanites GIF - Generator Rex Nanites Evo - Discover & Share GIFs

Prototype Nanite, Generator Rex Wiki

Jump With a Twist 4: Generator Bunnygirl – karmafalcon's CYOA adventures.

there's still stuff to cover with nanites, part 2? i love generator re

Mutante Rex: Nanitepostagem

🌹shiro🌹, Wiki