Really fun game. Biggest problem right now is that you can complete it in about 30s without any upgrades, so most of the time decreases don't really mean anything. Going from 5mins to 3mins to 1 mins to 45s to 30s doesn't add any tension, since by that point you've already surpassed that. It's less about use your upgrades to beat the new time but more set up your upgrades and hope you don't make any mistakes. Having to worry about each time increment would make the game feel more enjoyable all throughout, rather than just a burst of tension at the end. Otherwise great game and can't wait to see what more comes of this, I'd love to see what more upgrades you come up with!