It feels weird to go into the shop to "buy" an "upgrade". I'm sure it's probably already in the plans, but I would love to see actual items with lore and cool artworks. For example, bullet lifesteal could be some sort of magical artifact that grants you the lifesteal, etc. I think having the item show up on/around the character would be too much visual clutter, but just some artwork and flavor text in the menus could add a lot to the feeling of the game in my opinion. What do you think?