Wow, this is amazing. After seeing your game on the discord, I was excited to play this. Really good job, I definetly have to come back and play this one a little more :)
Only mouse controls are implemented perfectly. As others already stated, the scroll on the mouse whell would have been better, but thats just nitpicking. I love the asthetics. The items are implemented in a great way, which allows expanding after the jam, if someone whishes :)
I had some problem with the item descriptions not fitting on my screen in the shop, but I was able to "fix" those, by picking the item with my mouse, and moving it around until the item text pops up xD
Other than that, this is easy to learn hard to master and I love it. Again, great job!