User blog comment:Lord Loss/Monster Hunter Theory... Blog/@comment-4144060-20110716015827/@comment-4144986-20110716022458

-Instinct, probably. -Not 100% sure... Technology...? -Powerful muscles? -It is called the GREAT Desert... So it's probably just really big. -When Gypceros does that little animation before the flash, its Novacrystal/Lightcrystal clacks against its nose. We can assume that being whacked against the Gypceros's nose causes the Novacrystal/Lightcrystal to go through a little reaction (?)due to some sort of bacteria(?), thus releasing a flash. I don't know, these are just all of my assumptions.