A lot of cute artwork :) managed to complete the collection in 492 openings. It was a tiny bit confusing at the start, having to click on the 200 coin spot to buy a box and then having to manually set it to 'switched' to be able to use it. Although it didn't take long to figure it out, it might be a good idea to changed 'switched' to 'active' or something similar, and automatically setting the first box you buy to the active slot, but like I said it didn't take long to figure it out as it is. Props to all of the artists though <3