The game is functional. When you die, the game just stops. It loads the 'choose your reward' screen and you can't click on anything.
Consider a "You died" screen or permanent upgrade option.
In the current build, there's no way to succeed, but you've got the basic build of a game, which is the most important first step. Adding permanent upgrades between runs, and more strategy could make this a solid game.






Minor issue, if you move the guys to the left of the window, the pop up for the characters covers the icon, and you can never move them again. 
