Since you are a couple of good willed students I offer you some *** Constructive Criticism ***
The controls need a lot of tweaking: the mouse and movement smooth must go, AT ALL. The character's hitbox must be changed to something that is not a capsule (or at most can be maybe a thinner capsule). The point is that I shouldn't be able to "egbe grab" involuntarily. Speaking of which, with these controls, platforming is either too easy (green key) or too hard (red key).
There are some unclever choices even for unexperienced students: for instance, on the green key "platform puzzle" why did you lower the platforms by "a bit" and not the all way down? Why is the pit so short? Did you know you can step on lowered platforms?
The outworld path can be improved by placing the grass better and by adding some obstacle to justify the shape of the path, like hills or something. A flat field with a snakey path and nothing to see? It's pointless!
Also, the performances are really bad. The framerate becomes incosistent since the moment you take a key and the pillars falls. And this is not just an aestetic issue since it lags when I turn, losing my sense of orientation on a map that doesn't help at all on giving sense of orientation.