in the first scenario after the final, I somehow put the key obtained there into the pot of water, instead of what I assume to be unlocking the cage. Trying to see if I could reset this, I went to the second scenario only to be greeted by a black screen. This is a fun game, by the way. Awesome job.
 "Apocashop"){kind=icon}
 "Cube Escape: Seasons"){kind=icon}
 "Royal Squad"){kind=icon}
If you make enough profit, you'll level up and gain the ability to stock more items.