I'm looking through the rooms now, trying to determine if I accidentally made a trap that you got stuck in. Can you tell me what path took you to moletown? I didn't think it would be possible without either the double jump (through the water zone) or the pick (through the mechanical zone). I must have missed some clever way past one of those.
e: It was that teleport door wasn't it? Nuts, talk about an oversight. I'm going to try to get a fix released for this.