The game is way too short (3 minutes to finish it?), controls aren't really good. Animations are a bit weird (Kurt can't move his arm that holds the weapon? He can't move his body? He runs too quickly maybe too) And at the beginning, the egg should be an... easter egg?
Nothing to say about music, it's good. You have to review all the gameplay. Why we can't crouch with down arrow? You don't use it, you should and it could be useful in the game, or at least put "Use" for down arrow. For me the game only looks like a demo.