If you’re looking for a way to make the holidays feel a little less warm and fuzzy, Boston Dynamics has just released a video that should do the trick. The robotics company, which was acquired by Google in 2013, decked out three of their 160-pound quadruped robots in reindeer outfits and had them lead Santa’s sleigh around the neighborhood.

The Spot Bots are military-grade machines that are strong enough to lug heavy cargo and even fling cinder blocks across a room. Their trotting, canine-like gait allows them to run at high speeds and balance on uneven terrain. It also makes for a very unsettling version of Santa Claus’s team of reindeer. You can watch the full video above.