- This monster appears in the artworks of the following cards:
- Among the "Neo-Spacians", "Aqua Dolphin" has had all the first appearances of all three of the evolution stages of the "Neo-Spacians". He was the first to appear in the anime, "Chrysalis Dolphin" was the first "Chrysalis" monster to be released, and "Neo-Spacian Marine Dolphin" was the first evolved "Neo-Spacian" to be released.
- This card is the only "Neo-Spacian" whose Type changed from its "Chrysalis" state.