Normally I dont care for stickman animation but it really seemed right here somehow. I think its because it added some mystery to the blue guy and who he was fighting. The viewer doesn't really know who the blue guy is or why he is where he is and its not clear blue guy remembers either but both the viewer and the blue guy know he has to get out. We also dont know much about the guys with the glowing red eyes, are they human or maybe something more? Overall it does well in imparting a creepy "all alone in a nightmare" vibe. I do worry however that, given the last scene we may degrade into a stick slaughterfest.