[10] A spin-off handheld LCD game titled Freddi Fish: Jellyfish Jamboree was also released in 1999 that was based on a minigame from Kelp Seeds.

When Freddi and Luther investigate, they discover a note lodged inside, which gives clues towards more bottles that lead to Grandma Grouper's treasure chest.

Clicking on an item from the inventory bar and then choosing the right place to put it in a certain scene allows Freddi to make use of it to take every step closer to recovering the lost kelp seeds.

There are also a few minigames, such as "Jellyfish Jamboree", where Freddi must feed hungry sea creatures by throwing food at them before they get too close, with Luther keeping score.

Game designer Tami Borowick justified it because she sought to challenge the common trend at the time that girls would play male characters, but not the other way around, thus making Freddi the only playable female Junior Adventure heroine.

Due to the common practice of adult women voicing children of both genders, Borowick added a line for Freddi in the sequel that clarifies and ascertains that she is a girl.

The editors wrote that the game features well-made original characters, a strong storyline, appropriately challenging puzzles, and beautiful animation.