User blog comment:Freadliest warrior/Godzilla vs Gamera is HERE/@comment-24974663-20140818102439/@comment-5527544-20140820162308

His size doesn't really say much about how much energy he can dish out, yeah it's a factor but that big of a deal. Gamera's self-destruct compared to his size is fairly significant and compared to the possible size of his internal reactor, it's even greater. Also if you take his body size as a literal estimation of how much energy he can have, then he shouldn't have been able to fight for the periods of time he did during any of the Heisei films, especially when he was firing fireballs. Also it's the Showa Gamera that needs to go and recuperate, as the Hesei Gamera is said to be able to regenerate in battle, the wounds may still be visible but are no longer able to hold him back in battle, in the first movie they explained he went to rest because he had been asleep for so long, so he went to recharge, the second movie showed him reviving from near death and the third had him knocked out for a few minutes after Iris stabbed him in the stomach repeatedly but he still got up minutes later, capable of fighting.

If size says how much energy a monster should have, then Godzilla should be limited to a certain number of beams before he has to rest, which is never the case.