Its very fun and also a bit addicting. I liked the that you mixed 2d and 3d as well as the idea making warehouse management more interesting with an alien invasion. But there were a few things that made the game a bit hard for me. First of all because of the perspective I often couldn't see enemies and died. And second of all the enemies did too much damage in my opinion. A good addition for the game would be that sometimes there would be appearing health packs at random locations to make it easier. Conclusion: Great Idea and well executed but a bit too hard.