Ok, I think it's time to reveal another secret about the game, this time dev stuff.
The game originally had a very different premise, with Joe using power-ups and gadgets to traverse through multiple level based on each power-up. This idea actually came before the Jam. However, when the Jam started, I took the opportunity to restart development of the game. Stuff like Joe's sprite, and the Ground Tiles (which have a different color) are the only things left over from the previous project.
