Overall cute game and good job on accomplishing the theme and focus. Platformers in 3D are a hard thing to accomplish and you did so much in a week - it's impressive! I like the plane, that was a nice addition.
My Suggestions:
- When I went to the controls and then clicked to go back to the menu the game crashed, so that might be a bug or I accidentally broke it!
- Make some kind of check point.
- Maybe add a mini map so you can keep track of rooms as you go through them.
All in all great work. Congrats on completing this in time for the jam!