If you've lived in the Nasuverse, this is what you've been waiting for without knowing it. Every character gets a moment where the show abandons the source material entirely and just lets them be absurd, which is where the real comedy lives. The opening theme alone justifies the runtime. This is pure comfort viewing for people who already know these characters inside out, which means it gets funnier every time you rewatch it because you catch the deeper cuts.
Once every ten years, the Carnival Moment opens a brand new dimension where stories from Type-Moon's best-known works cross over, letting characters who have never met share the same space. Anyone taking part can have a wish granted, but only by winning a series of contests, and everyone is determined to come out on top however they can. Adapted from Eri Takenashi's Take Moon manga and made for Type-Moon's tenth anniversary, this twelve-episode comedy OVA gathers figures from Fate/stay night, Tsukihime, Melty Blood and related works. It drops them into absurd situations that exaggerate and poke fun at their own worlds and personalities, mixing loose parodies with new stories. The jokes draw on far more than the anime adaptations cover, so viewers familiar with the wider Nasuverse will catch the most.