Not really. Being radioactive won't really help against a machine. Say that he was being attacked by...that giant guy from the American fairy tale...you know the one with the giant cattle?? Maybe if he came up against him...for hundreds of years he'd be affected by the radioactivity after a bit.
The Gundam, whatever it is, will kick. His. Ass!
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As if!! I've passed 2000 posts and didn't realise...