Hey, really nice game. My feedback: I think it would be way more fun if the levels were smaller, specially the second one. That way you spend less time walking, which is the boring part of the game, and could spend more time shooting, which is the fun part. Also, for balance, you could increase the player's movement speed, and decrease the movement speed of the enemies, so the game stays fair even when you have less space to walk around. It would be nice to be able to shoot using the mouse instead of ctrl. And finally, having some intermediate task between shootings would be cool too, like exploring to find collectables, or items, something like that.