A couple of bugs: 1. After 300 or so units, the cost of the units are backwards (save for the lemonade stand). For example, the newspaper costs the most to upgrade with the car wash as second highest, while the oil rig is the cheapest. Currently I have 435 newspaper stands and the next stand costs 188 octillion to upgrade. Meanwhile, I have 635 oil rigs and the next one costs 117 octillion to upgrade. 2. The import/export function is bugged out. If you come back to the came after sometimes away, say 5 hours, and you export your save file and immediately import it back, the game thinks that the 5 hours elapsed again causing you to continously get 5 hours worth of cash over and over.
I feel so dumb. I didn't notice the expanded inventory until I got to the 10th floor ><. I felt even dumber when I realized I could have been sacrificing the extra gear for experience instead of dropping them on the ground.