I likely misunderstood the instructions but taking objects to the drop place behind the rock didn't seem to do anything, and the red button there wasn't interactable.

I'm guessing the wacky physics were an intended mechanic? Cuz' in that case that has to be explicitly stated (like "Goat Simulator" does), otherwise people will assume it's a bug.

In the end, I enjoyed flying to the stratosphere. The menus and loading bars were well-made. The "death messages" separate causes of death, which was a nice touch.

Keep up the good work! You'll learn very quickly.

If in other games I've written “add a sound to the button action”, to you I'll write “so why such a nasty sound on the button?”. )

This is definitely the safest delivery ever! if you find some time please rate my game!