To be clear, you cannot die while playing as Godzilla--you'll always turn back into a normal player at the end of it, no matter what. From there, you'll play the rest of the match out as usual. You don't, by the way, get any rewards for having been Godzilla in a match, aside from the happy memories.

Fortnite’s Godzilla skin is coming soon, but there’s a major change in how players can allegedly unlock the legendary Kaiju.