Death Billiards is an OVA from the 2012 Young Animator Training Project.
Death Billiards (デスビリヤード, Desu Biriādo) is a 25-minute original OVA which was one of four entries in Anime Mirai 2013, part of the Young Animator Training Project.
After an elderly man is escorted into a mysterious bar, he meets a young man, and the pair find out that they will be participating in a game of billiards, and that they should play the game with "[their] lives on the line." The two explore the deep psychology of their pasts and presents in this film, which is packed with symbolism and enigmatic twists.