Epic Games clearly has dozens of future crossovers planned, and if they're anything like the recent collabs, then Fortnite fans are in for a treat. Godzilla is

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.