The gameplay is fun but the attack sound and the camera shake does feel a bit annoying as you're constantly spamming attack (Maybe add a 2nd attack to vary the gameplay). I had difficulties accessing the merchant sometimes because of how many enemies there are. The screen can get flooded with enemies sometimes so having less enemies and give them more health could fix this.
I like the music both during combat and with the merchant.
Overall very fun to play. Just need more balancing and animation.