It's appearance is almost identical to that of a jellyfish, except this one is golden rather than pink, and it has dark golden spots.
Role in games
When SpongeBob captures this type of jellyfish, he temporarily gets a large golden jellyfish net which helps him collect even more jellyfish.
SpongeBob's Jellyfishin' Mission
Golden jellyfish serve as a collectable item with three of them hidden in each level.