Fun and silly game, but it broke after a few upgrades (i was stuck on the upgrade menu and nothing I clicked worked.
Viewing post in Rats jam comments
Thank you for playing the game and reporting the bug! We want to finish the game and fix the problems after the jam, so this is really very useful information. As a temporary solution, I recommend restarting the game in similar situations. This, of course, will reset the progress, but it will definitely fix the problem. Some power ups (usually blue ones) periodically behave unpredictably, and they can cause this problem.