Im happy to hear you enjoyed it! In the future I'll try to include Z and X as options too and Im sorry to hear about the bug. The UI doesnt work properly if you arent in fullscreen and even then I'm not sure how it works on other aspect ratios than mine. Now ive at least realized that I have to count for other aspect ratios as well :) The money remaining is intentional. Its so that if you keep dying but still can get coins you can make it easier for yourself by getting upgrades. Thank you for the feedback and thank you so much for playing :D