Kozui

Kozui

Don't let your brain melt!

4 ratings
7 reviews
Free

Details

  • Released
  • Updated
  • May 9, 2018
  • February 14, 2026

Features

Kozui screenshot #1 for iPhone
Kozui screenshot #2 for iPhone
Kozui screenshot #3 for iPhone
Kozui screenshot #4 for iPhone
Kozui screenshot #5 for iPhone
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ipad
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About

Engage in fast-paced, mind-melting puzzle challenges against a samurai. Test your reflexes and cognitive skills to see how long you can endure the escalating difficulty.

Fast-paced puzzles
Mind-melting challenges
Samurai opponent
Endurance testing
Cognitive skill development
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What's New in Kozui

4.2.0

February 14, 2026

- added two new mini-games: "Odd Shape Out" and "Count The Squares"

User reviews

was a perfect game…

…before the recent update it was perfect or near perfect, played it all the time, and LOVED it. The games were a guaranteed amount of time each, between 1.5 to 2.5 minutes each, I knew my time investment, and chose it. Now the only way to play, is open-ended timing, just play until I lose all 3 stars. I can still limit it, just by artificially losing, but it’s not the same with that. I don’t know which way is ultimately better, but I basically don’t play any longer now. This dev makes truly great games, so I hope he finds a way to have a choice in gameplay.
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Kozui

Brilliant, game gets faster and the music is good as well sayonara

Great game, a bit maddening

Like all Sean O’Connor games, this is an excellent game, collects NO PERSONAL DATA of any kind (huge endorsement in my book), and has a couple aspects that will infuriate you.

The Samurai popping his head up can occasionally hide the correct answer, which makes a big difference at the higher levels, when you have like 3 seconds to respond. Certain challenges, like pulling apart the monkeys, also just wrap your thumbs up with near constant movement, making it very hard to do the other two challenges.

Overall, great game and an excellent tool for building selective attention, focus and reflexes!
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Underrated

This game is what, like ten years old? And it still receives updates!

Great game

Love the game simple but fun, good little time filler!

Developer apps

FAQ

What is Kozui?

Kozui is a fast-paced puzzle game where players face challenges from a samurai. It's designed to test your reflexes and cognitive skills under pressure.

How challenging is Kozui?

The game features mind-melting puzzles with escalating difficulty. Players aim to see how long they can last against the samurai's increasing challenges.

Is Kozui free to play?

Yes, Kozui is available for free. There are no in-app purchases or advertisements, offering an uninterrupted gaming experience.

What devices support Kozui?

Kozui is supported on iPhone, iPad, and iPod devices.

What is the age rating for Kozui?

Kozui has an age rating of 4+, making it suitable for a wide range of players.

How often is Kozui updated?

The latest version, 4.2.0, was last updated on February 14, 2026. This indicates a history of updates, though the exact frequency is not specified.

Does Kozui have multiplayer?

The description focuses on single-player challenges against a samurai. There is no mention of multiplayer or online modes in the provided information.

Can I play Kozui offline?

As there are no mentions of online features or requirements, it is likely that Kozui can be played offline. However, this is not explicitly stated.