Traintron is a subway train-themed Gigatron created by one of the new Cybervillains called Sparks and the main villain who appeared in the SML Movie The Subway where Robo-Roxy and Sparks goes into the Subway and they uses the Gigatron-Maker and they infected the subway train to create him later he got attacked Devon Daniels Zoey Reeves along with Freddy the Flamingo and they destroyed him for good

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