I'm probably asking for too much but, it would be nice to customize your weapons. Changing the sights (some just suck so bad) and maybe increase mag size, reduce recoil, etc. It could go from 600 HP for the first few and go to 5-10 coins later on maybe.
 "CycloManiacs 2"){kind=icon}
 "King's Bounty: Legions"){kind=icon}
 "Transformice"){kind=icon}
 "Kingdom Rush"){kind=icon}
 "Red Crucible 2"){kind=icon}
 "Massive Mayhem 3"){kind=icon}
 "Running Fred"){kind=icon}
 "Epic Battle Fantasy 3"){kind=icon}