Blowtron is a tuba-themed Robotron created by Robo-Blaze from a tuba and the main villain Blowtron appeared in the SML Short Bowser Jr.'s Tuba where Bowser Jr. tries to take care of his tuba but it got taken by Robo-Blaze and used the Robotron-Maker and he infected Bowser Jr's tuba to create Blowtron but he got attacked by Devon Daniels Ravi Shaw Zoey Reeves Nate and Steel along with Freddy the Flamingo and they destroyed Blowtron for good

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