Hey so here are some of my thoughts...let me know what you think.
1. I think there should be two modes, Story mode where like in the first versions, linear dungeons where you get keys to unlock doors and what not, find the boss and kill him. And then Adventure mode where the dungeons are randomly generated and then the point is to survive, or whatever - no Storyline.
2. Why does the grass follow you?
3. The inventory should be brought up by pressing a button on the keyboard, then the mouse should be able to interact. The whole 'Z' thing gets kinda fuzzy, sometimes I accidentally
click exit

4. I hate pressing the wrong keys when I am running away from an enemy and then I use up my potions by accident..something you can do to fix that perhaps?
5. How about an Armor bar, so like Minecraft, above your health you see how much Armor you have left.
6. I think you were experimenting with different textures, but I think just a GUI overhaul might be all it needs.
That's all I can think of, I really enjoy playing this game!