This is a really good concept that seems like it hasn't really explored a lot of its potential. There's some degree of puzzling based on the mechanic of switching from top-down to side-scrolling and the accompanying change in gravity (or lack thereof), but it's sort of basic in this form. I'm not faulting you for that because I know this was done for a gamejam with a very limited amount of time so there's not really a chance to sit down and design super intricate puzzles. But if the purpose of a gamejam is to get you to explore an idea quickly and potentially find something that's worth fleshing out with more time, then you've mosdef accomplished that mission.