Gladiator of Kaon in the world of Kaiju Girls*ON HOLD*

After self-exiling himself from Cybertron after disbanding The Decepticons, Megatron, Former Leader of the Decepticons, left Cybertron and went into deep space but a portal opened when he was reaching a deserted planet and was sucked in, when the portal closed Megatron entered a whole different universe and crashed landed on Earth near Monster Island where Godzilla and her crew notice and went to investigate but what they found confused them as they have never seen him before but brought him on Monster Island so that the humans don't get their hands on him for their experiments but they know that Ghidorah will no doubt come for him so they need to keep him safe, but when he woke up Godzilla Jr was curious and wanted to know him and answer his questions if he had any, after there little talk Godzilla and Mothra wanted to ask him questions but he told them that Junior has the answers they seek and for them to go see her to get the answers they want, on Ghidorah's ship Orga and Megalon was tasked by Ghidora herself to get Megatron if he resisted then bring him in by force but they failed to get him and sustaining injuries from Megatron from underestimating him, because of that Megatron was at a very long and painful war before he left Cybertron and disbanded the Decepticons

What will Megatron do if Ghidorah will continue her rain of terror and continue to try to take over Earth and destroy Godzilla and the Earth's defenders, will he help them or fight Ghidorah on his own and sacrifice himself for the people he cares about