Step 1) Head to Sandal Falls (check the map). Jump through the waterfall. Speedboots might be needed; you can find a non-annoying pair of boots at the roof of the hotel in the Desert Town.
Inside the waterfall you will find a pair of sandals that will allow you to walk on water like a certain brave Hebrew boy.

Step 2) Head to the ocean, equip the sandals and walk aaaall the way to the westernmost edge, marked red on the map. You'll eventually walk outside the map area - keep going. Sooner or later, you will find a chest that contains the Skeleton Key. This key will open almost many locks to doors that are normally not accessible to the player.


Step 3) Head to Bowtudgel City and enter the Vinecon Palace. Inside the throne room, open the door on the right. This door is normally locked, but the Skeleton key will open it for you. You'll enter into a small white room. Enter the cubby on the left and open the chest. Here you'll find a Developer key.

Step 4) Press F5, F6, F7 and F8 to get free stuff. This is not cheating.
Pressing F6 might crash the game.


A thank you to Dork for correcting me regarding the placement of the chest.