It would be better if the back pack can be upgraded to add more items for longer game play, to even up for the game instead of one enemy put two or more enemy for harder difficulty. You can put a little story telling is not going to hurt a bit. It's just silly running around fighting monsters without a reason.
 "Random Heroes"){kind=icon}
 "Trigger Knight"){kind=icon}
 "Town of Fears"){kind=icon}