hey just saw that you were asking for ideas towards the end of the content

two things I think is important

during upgrades you can see the stats of the thing you are upgrading and what the future stats would be after the upgrade. 

How about like a debug password and and add a debug option in the main segment

just something I noticed in your code is that with the college, you the pollution and maybe other options are too good  when you don't have much intelligence for the early game due to having the wrong symbol in the code

the clothes store they are called sneakers

specifics please cause I'm not seeing it