Thank you very much! Your idea about the meter on the left is correct. If you're interested, I can offer some insight on the asteroids speeding up when you speed up - I did in fact program that in, and you've had a really good eye for that detail. The asteroids were previously spawning with a consistent speed range, but I noticed that they were becoming too slow the faster the player was (they'd spawn, but the player could then easily zip past them if they stuck to the middle), making getting a higher score a bit too easy if RNG gave you enough permanent speed upgrades early on. So I made it so that asteroids would spawn with a velocity range relative to the player's, so that they would still need to watch out instead of kind of cheesing it, haha.