dude your game has glitches specifically in multiple arena battles when you come back after saving. you don't start in full health unless it's the first one, and that doesn't seem right. other than that, it's a great game
needs mores lotts too many combos to try. Switching to hard at the end of the game should not come at the cost of your perks and money. this should be only something for when you do it in the middle. Just suggestions.