Nobody talks about this one. A four-panel manga about a video game from 1983 becomes an OVA that understands the specific humiliation of being the worst spelunker alive, not in a tragic way, just catastrophically, absurdly bad at the one job you have. The joke lands because it commits fully to the premise: this character dies to everything, learns nothing, keeps trying anyway. It's comedy built on the bedrock of video game logic meeting real failure. There's no deeper meaning here, no redemption arc waiting in the wings. Just a man in a cave, getting killed by everything, and somehow that's enough.

Spelunker is the new teacher at a school, and he is nothing like an ordinary instructor. He is so fragile that a cold or a simple slip and fall is enough to kill him. The comedy follows his daily dealings with colleagues and students: lecturing the class on traffic safety, reacting oddly to a humidifier, and fumbling his condiments at lunch. This single-episode OVA adapts a four-panel parody manga. Its hero spoofs the lead of the 1983 video game Spelunker.