In the not so vast forest I had one life left (out of 9) and I'd gotten the snake from 5000 to 4000, he hit the edge of the board, took my last life, and It said "you win!" And I got the badge!
I think it is good, all you whiners giving it 1/5 just because you cant work out how to play, or you can't complete a level are pathetic. Great game. 5/5