2 glitches, 1. In a vendor on mobile you can press something you don't have enough to buy, but it will just give you it. it will not show it either, but you can use it to get 16 of a hat, or get any item a vendor shows (that I know of)
2. on mobile, if you press where contrite (the one that lets you skip chests) would go, it just skips it and acts like it was there even if you are on the first round.