The Bunsen Burner is one Rex's all new and first build to be built by Ben's dimension nanites.It is a really good and useful build since it's powerful,strong,and can shoot blaze.Rex is not yet fully comfortable using this build since it's with completely different and all new nanites.


It's an all new build that Rex first use in the Heroes United the series episode "Zone Zero".

Ben used this build to defeat the Yanaldooshi.


It shoots flames from the edge of the top of Rex's Knuckles.

It is also a strong build like the Smack Hands,so he could also use this build to smash objects.


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