Not Not 2 - A Brain Challenge

Not Not 2 - A Brain Challenge

26 achievements
Ultra Rareร—10
Very Rareร—6
Rareร—6
Uncommonร—2
Commonร—2

About Not Not 2 - A Brain Challenge's achievements

Not Not 2 - A Brain Challenge has 26 Steam achievements, 10 of them ultra-rare โ€” unlocked by under 5% of players. The rarest is "The Olympics", earned by just 0.7% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement
0.7%
of players earned "The Olympics"

Community Ratings

Loadingโ€ฆ
Difficultyโ€”
Easy โ†’ Brutal
Enjoymentโ€”
Meh โ†’ Loved it
Grindinessโ€”
No grind โ†’ Huge grind
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All Not Not 2 - A Brain Challenge achievements

26 achievements
The Olympics
The Olympics
Complete 8 different challenge levels with at least one star
Ultra Rare0.7%
The Matrix
The Matrix
Finish the Ultimate Survivor challenge level with at least one star
Ultra Rare0.7%
The Rainbow
The Rainbow
Complete all levels from The Rainbow world
Ultra Rare1.0%
The Persevering
The Persevering
Play a daily or weekly level 7 days in a row
Ultra Rare1.0%
The Missing Door
The Missing Door
Complete all levels from The Missing Door world
Ultra Rare1.4%
The Enduring
The Enduring
Play a daily or weekly level 3 days in a row
Ultra Rare1.4%
The Impossible
The Impossible
Complete all levels from The Impossible world
Ultra Rare1.7%
The Geometrist
The Geometrist
Complete all levels from The Geometrist world
Ultra Rare2.1%
The Elephant
The Elephant
Complete all levels from The Elephant world
Ultra Rare2.8%
The Collector
The Collector
Unlock 10 characters
Ultra Rare4.5%
The Empath
The Empath
Complete all levels from The Empath world
Very Rare5.9%
The Milky Way
The Milky Way
Collect 150 stars
Very Rare7.0%
The Experimenter
The Experimenter
Complete all levels from The Experimenter world
Very Rare8.4%
The Colorblind
The Colorblind
Complete all levels from The Colorblind world
Very Rare8.8%
The Challenger
The Challenger
Unlock a challenge level
Very Rare11.6%
The Logical
The Logical
Complete all levels from The Logical world
Very Rare14.4%
The Money
The Money
Earn 500 diamonds
Rare16.5%
The Night Sky
The Night Sky
Collect 100 stars
Rare17.9%
The Immortal
The Immortal
Die a hundred (100) times
Rare18.6%
The Colorist
The Colorist
Complete all levels from The Colorist world
Rare20.0%
The Empty
The Empty
Complete all levels from The Empty world
Rare24.6%
The Star
The Star
Collect 50 stars
Rare26.4%
The Basics
The Basics
Complete all levels from The Basics world
Uncommon40.1%
The Lightning
The Lightning
Reach the best reaction time under 50ms
Uncommon48.2%
The Supersonic
The Supersonic
Reach the best reaction time under 100ms
Common58.4%
The Beginning
The Beginning
Complete the first level
Common84.8%