Zenthon is a Mechtogan and a major character in Super Smash Bros. Crossover. Like in Mechtanium Surge, Zenthon was born when Drago lost control of his powers. Zenthon reappeared when Drago lost control again and Ganondorf had hijacked the training room control panel so it couldn't be prevented as the Koopa Troop desired his power. Drago, Preyas, Elfin, and Darkus Krakix were knocked aside like they were nothing, though for Drago it was because he gets exhausted after losing control, and Ganondorf couldn't control him as he hoped. Ultimately, Zenthon was beaten by Vegeta, who was defeated last time and was left in critical condition and became stronger than Zenthon. Unfortunately, Sasuke and Ganondorf got their hands on Zenthon. Zenthon eventually met his end at Ganondorf's hands and was under the process of being restored by the heroes until Mecha Sonic returned 10% of his power which restored him to full power. Zenthon reappears in Season 23 to battle against Wiseman. Later, Zenthon, Zenthon Titan, Dreadeon, and Razen Titan sacrifice themselves in an attempt to destroy Mechtavius Destroyer. However, the Mechtogan and their Titan counterparts survive somehow, as Zenthon reappears later on. In Season 25, Zenthon and the other Mechtogan, with the exception of Dragonoid Destroyer, sacrifice themselves to protect the heroes and villains. In Season 26, Zenthon and the other Mechtogan are revived by the heroes' emotions, and come to their aide against Mechtavius Destroyer. In Season 30, Zenthon sacrifices his life again to stop Mechtavius Destroyer from harming his masters. Zenthon returns once again in Season 31 due to Naruto and Drago altering history.