Interesting concept, however the gameplay itself feels lacking. Shooting does not feel all that good since the guns are useless after a bit of shooting. Not sure if cooperation is needed here either since I was able to walk to the portal alone, even with a bug following me, but unable to kill me at all. Also I found the bomb, but could not switch to a weapon anymore or do anything else. I also was not able to use the bomb at all. Also the music is ridiculously loud.