The main Menu seems pretty polished already, but it feels more like a Handheld Menu then a PC one. Like if this was aimed at the Switch to be played while on the Train/Bus or something.
Resolution selection is non-existent, just an empty Field.
What's the difference between Start and New Game, and why is both there?
Your Graphics fit rather well together, and you really got a good Look for the Paperdoll 2D on Aggy.
Some Animations need a rework I think, walking should be more of a jog, and both walking and running need to lean forward more, currently it's too upright.
Similarly, most of the jumping animations feel a bit too stiff, and you could have some better transitions between them. Ctrl+Jump should just do a single Rotation I think, not 3 or 4 or however many.
Ticket got Animation is nice, and it's nice that you have transition Animations, but walking to crouching slides too much I think.
Voice could use more Variation, you have pretty much a single Soundeffect for a single Action.
Sound Design other then the Voice is really nice, the Level obviously isn't, but you know it's just a showcase, so no Point in talking much about that. The Mechanics work, and in a properly Designed Level, a City or something I could really see this as a handheld 3D Platformer.
Vending Machine, different Costumes, the cute Moped, that all works pretty well.
I think Animations should get a bit of a Rework/Improvement, and you should think about if this is aimed at Handheld or at being played on Desktop and adjust accordingly, other then that from what I see it seems to mostly be missing Content.