# Kozui — Don't let your brain melt! > Fast-paced puzzle game testing reflexes and cognitive skills against a samurai. (iPhone/iPad app by Sean O'Connor.) - Source: https://appshunter.io/ios/app/kozui/id1378563689 (this page in markdown: same URL + `.md`) - Developer: [Sean O'Connor](https://appshunter.io/developer/305324345) - Category: Games, Action, Puzzle - Price: Free - Rating: 4.40/5 from 5 App Store ratings · 7 written reviews indexed - Age rating: 4+ - Requires: iOS 15.6 · 23 MB - Languages: American English - Released: 2018-05-09 - Data updated: 2026-08-13 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/kozui/id1378563689/reviews.md ## What is Kozui? See how long you can last against today's samurai as he challenges you to a range of fast paced mind-melting puzzles! ## Key features - Fast-paced puzzles - Mind-melting challenges - Samurai opponent - Endurance testing - Cognitive skill development ## Recent user reviews (7 of 7) All indexed reviews: https://appshunter.io/ios/app/kozui/id1378563689/reviews.md ### 2/5 — was a perfect game… *2026-02-15* …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. ### 5/5 — Kozui *2022-11-06, version 3.0.0* Brilliant, game gets faster and the music is good as well sayonara ### 5/5 — Great game, a bit maddening *2022-09-10* 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! ### 5/5 — Underrated *2020-03-03* This game is what, like ten years old? And it still receives updates! ### 5/5 — Great game *2018-06-05, version 1.1* Love the game simple but fun, good little time filler! ### 5/5 — Great little time waster *2018-05-22* I have this game on my android phone and my iPad, screen size does make a difference in my score, but gameplay is still great. The premise is simple, just answer simple questions simultaneously with others or tasks. Reminds me of playing Brain Age from the Nintendo days a little. Graphics are pleasing, sound is fun, a great little game. Thanks Sean for another impediment to my productivity! ### 5/5 — Awesome stuff *2018-05-03, version 1.0* Simple but fairly challenging! ## Frequently asked questions about Kozui ### 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. ## Version history (last 5 releases) ### 4.2.0 — 2026-02-14 - added two new mini-games: "Odd Shape Out" and "Count The Squares" ### 4.1.0 — 2026-02-07 - your best time is now shown on the scores screen ### 4.0.0 — 2026-02-04 - take the samurai's challenge of the day - new puzzles, including 'Multiples', 'Squares', 'Odd Shape Out', 'Letter In The Word' and 'Correct Spelling' ### 3.0.0 — 2022-01-03 - new look game chooser screen ### 2.0.1 — 2021-09-23 - fix for issues with iOS 15 ## Apps similar to Kozui | App | Rating | Price | Category | | --- | --- | --- | --- | | [Trail of Gods](https://appshunter.io/ios/app/trail-of-gods/id1557307249) | 4.0 (4) | $2.99 | Games | | [Ground Up Construction](https://appshunter.io/ios/app/ground-up-construction/id1445728381) | 4.5 (2) | Free | Games | | [Residual](https://appshunter.io/ios/app/residual/id1635302755) | 3.5 (14) | $5.99 | Games | | [King Arthur Tower Defense](https://appshunter.io/ios/app/king-arthur-tower-defense/id1330505780) | — | Free | Games | | [Save the Spaceman](https://appshunter.io/ios/app/save-the-spaceman/id1475397509) | 5.0 (4) | Free | Games | | [Adventure Pinball](https://appshunter.io/ios/app/adventure-pinball/id1470076361) | 4.0 (34) | $1.99 | Games | ## More apps by Sean O'Connor - [Slay](https://appshunter.io/ios/app/slay/id305324342) - [Conquest (+ all maps)](https://appshunter.io/ios/app/conquest-plus-all-maps/id307662507) - [The General](https://appshunter.io/ios/app/the-general/id310914488) - [Rats!](https://appshunter.io/ios/app/rats/id320729279) - [Four Tribes](https://appshunter.io/ios/app/four-tribes/id366798640) - [Topple!](https://appshunter.io/ios/app/topple/id378123895) All apps by Sean O'Connor: https://appshunter.io/developer/305324345 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-13.*