The Curse of the Bone God Oxter (呪いの骨神オクスター Noroi no Hone-shin Okusutā) is the 30th episode of Return of Ultraman.
Jiro and his older brother Ken get lost while going hiking on Mt. Daio. They meet a friendly villager and lodge at his place with geological scientists. Next day, they together visit a graveyard filled with buffalo bones. The scientists pick up the bones and take them with themselves although others discourage them from doing so. Ken worries that monster Oxter might be protecting the bones...
- Return of Ultraman Volume 8 Features episodes 29-32.