Click on the doors and the purple arrow to to go to different rooms, click on the blue arrows to flip through the supplies, click on the cages to open them, click on the stuff to buy it, and click on the front desk to see what you've bought. Ok There appears to be an error with the cloud variable I put in to keep track of how much XP I gained from this shop. Could you please say what you bought in here until I can figure out what the heck is wrong with it?:3
