Blowtron 2.0 is a sliver tuba-themed Gigatron created by Robo-Roxy from a sliver tuba and he's a main villain who appeared in the SML Short Bowser Jr's Tuba Lesson where Robo-Roxy finds the sliver tuba in a trash can and she uses the Gigatron-Maker and she infected the sliver tuba to create him later he got attacked by Zoey Reeves Ravi Shaw Steel and Nate Sliva along with Freddy the Flamingo and they destroyed him for good

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