This was very cool! I like the animation used and the effects and story telling was on point for creating a tense atmosphere. The cosmic horror aspects of the short, like the blood traveling up to the ceiling was great.
I thought something was wrong with my head phones when I heard a few of the sound effects as they were too quiet. Laser shots, Guy fighting to get his arm back, and the sounds of the boarded up windows and doors getting hit were all very muffled or didn't have the impact they felt like they should have had when they occurred. However this might working as intended with some choices of small sound effects like the tongue moving working well.
It's videos like this that make me look forward to the Halloween contest! Nice work!