You're browsing the GameFAQs Message Boards as a guest. Sign Up for free (or Log In if you already have an account) to be able to post messages, change how messages are displayed, and view media in posts.
Don't have any clue on the triggers for Varkids to transform, but I just got Verm on a Solo game and didn't really do much of anything to it. Soon afterwards, after a couple deaths, it just up and died on me. It may have something to do with the fact that when it was an Adult and Badass it was stuck in a wall, but who knows. Got a free kill, so it was awesome.