I liked the idea of the game, however it's pretty much completely RNG based, some suggestions would be using your money to gain an advantage like being able to get a glimpse of what's behind each door. Maybe items would be good too, like buying armor or health to protect yourself from getting damaged; that way you have to think about whether or not you want to focus on getting the highest amount of money possible by nothing buying anything or focusing on the length of the run. These are just suggestions though, if you wanted the game this way then that's completely fine! Overall, it's a really interesting and unique idea, the graphics are nice and you executed it nicely for what time you had :)