I like this. It looks stellar and quirky, has sweet (albeit repetitive) music and the inventory system is innovative and really makes you think. The risk reward system with the gold being more valuable after each fight is welcome too.
One of the few issues is that it's easy to discard something by mistake if you just want to go back to the shop. Also this game could have been longer so that the player will have the chance to fully upgrade their inventory.
Other than that, though, great job!