Fun concept and great presentation! It's interesting how the maps overlay, and you kind of create your own levels using pre-defined chunks. It's neat swapping parts on and off on the fly.
I wanted to mention that it's hard on my wrist to hold Shift and A or D at the same time--I'm not sure if I have misunderstood how the player's hand is supposed to lay on the keyboard. It's also pretty tricky to navigate the mouse while Alya is sailing over a bottomless pit (I wonder if hotkeys would be better for this sort of thing). It is also difficult to read exactly when Alya will clip up on top of a platform or get pushed out to the side of it.
Anyway. Hopefully I'm not missing the point. Thank you for sharing this game!