The third stage, the "*censored*-blaster", is introduced in Tremors 3: Back to Perfection. In order to take flight, they shake and quiver their tails and backsides and seem to be mixing two liquids which produce an explosion of flames from their rear end
lol
I'm gonna have to check netflix for that one.
If I cant find it there, I might have to resort to a more piratical solution.