This achievement is easy to get. No brainiacs required.
Oh, soz. I was typing my comment before I saw yours
I first thought you had to die in a certain way by a certain character, because of the skull, nope...
Hint: New players might find this achievement by accident in math level.
I haven't tried to look for the new achievement yet, but I think you should be a little bit more exact with your hint about getting it, as it seems a little bit too ambiguous.
