Card Trivia:Virtual World Shell - Jaja
- This monster is based on the Black Tortoise, one of the Four Symbols of the Chinese constellations. Despite its English name, it is usually depicted as a turtle entwined together with a snake.
- This card's name is a reduplication of the Chinese character jiǎ (甲; "shell").
- This monster appears in the artwork of "Virtual World Gate - Xuanwu".