WFL Calculator ↗

Pet Simulator 99 · Values

Huge Kaiju Hydra in Pet Simulator 99

Huge Kaiju Hydra

358M diamondsExclusive#665 most valuable1,763 exist

Huge Kaiju Hydra is currently valued at 358M diamonds in Pet Simulator 99, making it the #665 most valuable tracked item. It is an Exclusive item. Values reflect trader consensus as of 1 November 2026. Before you accept any offer for Huge Kaiju Hydra, run both sides through the WFL calculator. A fair trade lands within about 10% of even.

Huge Kaiju Hydra value by variant

Recent average price for each version, with how many copies exist. Rarer variants trade well above the normal pet:

VariantValueExist
Normal358M diamonds1,763
Rainbow4.88B diamonds45
Shiny5.92B diamonds70

Fair trades for Huge Kaiju Hydra

Items worth about the same, one-for-one swaps with these are close to fair:

ItemValueRarityDemand
Huge Evolved Cupcake411M diamondsExclusive–
Huge Matryoshka Capybara411M diamondsExclusive–
Huge BIG Maskot411M diamondsExclusive–
Huge Samurai Dragon408M diamondsExclusive–
Huge Claw Beast407M diamondsExclusive–
Huge Party Penguin406M diamondsExclusive–