Thanks for taking the time to check it out! In the most recent build I've made things a little more urgent, your fuel depletes a bit faster based on how fast you're going, and the tornado does damage to your hull over time as I feel like it probably would if you were flying in one IRL lol, so hopefully those two things make upgrades feel a little more necessary. I've also fixed the persisting upgrades issue along with that. Being able to keep flying after mission complete wasn't totally intended but I figured it wasn't super gamebreaking, since upgrades don't do much atm lol, but I do intend of addressing that eventually. And the sense of direction thing is a common thread across a ton of the feedback I have gotten so it's definitely at the top of my list of things to figure out. I appreciate you leaving such thorough feedback!