The Steel Jellyfish only appear in the DS version of Atlantis SquarePantis Game. They are jellyfish made of steel and are actually easy to defeat despite their looks. Also, its attack is exactly like the Green Jellyfish
They look like a jellyfish made out of steel that is colored silver
- It is a counter-part to the Green Jellyfish.
- It is unknown if it will appear in the series, however, there have been robotic jellyfish before.