Card Trivia:Fortress Whale
- This monster appears in the artwork of "Sea Stealth II".
- This monster is based on the narwhal, a species of toothed whale known for their single tusk protruding from their face.
- This monster has two retrained counterparts: "Citadel Whale" and "Mega Fortress Whale".
- This is the first and currently only Fish Ritual Monster.
- This is the only prize card Joey Wheeler owns that he never uses in the Yu-Gi-Oh! anime, most likely due to the fact that he did not acquire its corresponding Ritual Spell Card, "Fortress Whale's Oath".
