What a blast idea for the jam!! it's like you developed four different games, each of them with their own personality and filled with charisma. You achieved a great difficulty curve just as the premise of your game says. Even with simple graphics the game is filled with juice, it makes an enormous difference in the game's feeling.
There are some design points that must be polished. The first game needs to define better the room limits, it feels like an invicible wall stops me sometimes. The second games needs to stablish better in which way the obstacles damage you, it took my a while and some hits to get it. The third game had really ambiguous controls, I didn't get how to actually control pac-man, he just moved because of unknown reasons. I had no issues playing the fourth game, but I never discovered what would happen if the world citizens reach the bathroom paper. Remember that level design is a communication process, you have to explain everything to the player but with the minimum information possible.
I admire that you actually developed an ambicious idea, keep that in mind and eventually you'll polish your skills and develop something incredible. Excellent work!