Nice prototype!
It took me a while to get accustomed to the controls, I try to play demos without looking at the commands first and I was utterly confused when spacebar turned the mech right lol.
You could probably simplify it a little bit: ground mode could just be covered by being in hover mode with 0% thrust and I don't see what's the point of folding/unfolding your wings. I know it says "post stall maneuvering" on the game page but that sounds like a situation where you can just switch to hover mode if needs be?
Also I tried playing it with a controller at first because usually flight games are harder on M&K, and while moving is better aiming is pretty much impossible.
It's a fun concept, I love games where you go fast, and switching between flying and hovering as you go form target to target is nice even in this basic state.
Switching from flight mode to hover mode stops you at an appropriate pace, but switching back to flight mode has a very slow acceleration, imo it should be more of a whiplash.
I hope you keep working on this, I think it has potential.
Clever title btw