I am confused. I can fall off the edge of the world (the end), and I can get back by going left for long enough (or by going right, at which point the game glitches), but with the letters PEAT, I don't know how to get any further.
oh, i can see why you got confused, you're not supposed to get back from the void. that's where the game ends currently. i've now disabled this behaviour.
