Barugon vs. Gyaos!!

Lets just say that Gamera never thawed out from his first encounter with Barugon, leaving the monster free to run around Japan. A year passes and his wounds have healed and he has started using his rainbow again. Gyaos wakes up and, being a creature that hates fire and brigth light, is seriously pissed off by Barugon's rainbow. Who wins the fight??
A few things to consider:
Gyaos is weak against sunlight and fire, so theres a good chance that Barugon's rainbow (which even Barugon himself was mauled by) could take out Gyaos in one shot.
Its also noteworthy that if Gyaos can avoid the rainbow (he is pretty swift, afterall) that he could slice Barugon (who isn't protected by a shell, like Gamera) to pieces with his ray.
Either way, it would be a quick and bloody fight.
A few things to consider:
Gyaos is weak against sunlight and fire, so theres a good chance that Barugon's rainbow (which even Barugon himself was mauled by) could take out Gyaos in one shot.
Its also noteworthy that if Gyaos can avoid the rainbow (he is pretty swift, afterall) that he could slice Barugon (who isn't protected by a shell, like Gamera) to pieces with his ray.
Either way, it would be a quick and bloody fight.