Machines can learn like humans; they can walk like weird dogs on ice; they can beat humans in the game Go. But there’s something glorious about shitty, idiotic robots. Hebocon is an annual competition held in Tokyo dedicated to finding the shittiest possible ones, and a new short documentary captures the ensuing, extravagant shittiness well. The initial appeal is the robots themselves, which include a remote control car studded with weird pieces of flesh, a chunk of wood propelled by a mallet hitting a bell, and a spinning Barbie that vomits play-money. They square off in sumo-style matches that end, inevitably, in failure. But what really makes Hebocon is the larger philosophy of loser-dom.