I'm sorry to hear that. Which version were you playing? I just tried on the web version and didn't see the issue so if you had any additional details I would love to hear them.
Viewing post in The Purple Tower jam comments
OK. I played the game four more times. I don't think it is a browser issue, it happened to me on Chrome and Microsoft Edge. I actually managed to complete Floor 2 on Edge but it happened again on Floor 3. All I know is that the screen flashes and stays red as soon as a I start it, and then no input from me will register.