Hidden Blooks - Race Code

Hidden Blooks is an area, pack, or collection of blooks found at the end of all packs on the Blooks Collection page. This section contains some of the rarest blooks in the game that are added when you obtain them. These include Chroma, Unique, Mystical, and Unreleased blooks (when you use hacks). You can also view retired blooks here if you have collected any of them.

The blooks in the Hidden Blooks section are usually very rare, such as Mysticals, and are mostly obtained through seasonal packs like Chroma Blooks, special events like Contest of Candies, or other unique methods. The easiest blook to get in this section is the Wise Caterpillar, which can be added to your collection with just one click.

All Mystical Blooks appear in the Hidden Blooks section once you obtain them.

Trivia

All the Mysticals and Uniques appears in hidden books section.
All the Astronauts from Space Packs (Excluding Legendary Astronaut) also appear in Hidden Blook Section.
There are more then 59 blooks in Hidden Blooks Pack.
Wise Caterpillar is the easiest blook to among all Hidden Blooks.
The Hidden Blooks section does not appear for players until they unlock at least one blook which is found in hidden blook section.
If a blook is retired from the game, it still stays in the Hidden Blooks section for players who already own it.
Some unreleased blooks have been temporarily visible in the Hidden Blooks area due to game updates or testing.
The Hidden Blooks section once had its name changed twice in 2025 first renamed to “Hidden Pack” on May 8, then switched back three days later for reasons that were never explained.
Among all areas of the Blooks tab, the Hidden Blooks section contains the largest number of blooks overall.
Some Aquatic-themed Chromas appear in random order instead of following the normal arrangement used in other categories.
When using hacks or game glitches, players can view Unreleased and Retired blooks that normally do not appear.
White remains the only unreleased blook that does not show up in the Hidden Blooks section, even with modified access.
Interestingly, White is also missing from the Color Pack list, which makes it completely invisible in the collection.
Before updates were made, Sandwich was the only Epic blook that appeared in Hidden Blooks during test access.
The Sandwich blook was first meant to be part of the Breakfast Pack, but the developer later moved it to the Lunch Pack and changed its rarity to Legendary.
The name “Hidden Blooks” fits the theme well since the section stores blooks that cannot be seen in any of their regular packs, such as Chroma, Unique, and Mystical ones.