Fun game! I like the potential but here are my ideas if the dev team decides to keep working on this project:
1. See the stats of equipped items when you hover over them.
2. Damage indicators.
3. The ability to sell things instantly but you only get 50% of the coins. Or make the market double. Al
4. At the selling stop, allow the player to maybe buy one of 3 items for coins to make the coins have use.
5. More enemy variation rather than just stat changes.
6. Faster game rate, it seems a little slow right now. (All though most comments said that lol)
There are just some ideas to make the game better. Overall a very good idea and it has lots of potential! Keep up the good work!