I've gotten four endings but it seems like after each ending something new is added to the game which is a cool mechanic if that is what is going on (although it would be nice to have a download for the game then) so that could have effect on getting all the endings.
so far I've found the ending of food falling from the sky, you cross the rickety plank, you eat through a wall of food and you just become immobile from eating too much, what four did you find?
