Great concept! It's a thrilling Idea, perfectly fit into Pixel Day! I love the variety of classes, the different specials they have, and the ability to swap weapons throughout the levels. The replay-ability of this game is perfect! While the bosses remain the same, the customization's you can find along the way can vastly affect the outcome of the game, and effect how you go about each interaction with the enemies. plus, who doesn't loving slaying some nazi's :)