UFO99 vs Janken Samurai
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
UFO99
Engage in a vibrant arcade experience, smashing block monsters with hammers and collecting gems. Challenge increasingly difficult levels, battle giant bosses, and enjoy cooperative play with friends. Discover unique characters and power-ups in this fast-paced, visually appealing game.
- Easy flying and combat controls
- 1-4 player local co-op multiplayer
- Collect over 60 unique characters
- Short, quick gameplay sessions (1-3 minutes)
- Battle giant bosses with power-ups
- Colorful and cute graphics
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Block monsters can be found floating around in this colorful universe, so watch out! Pick up big hammers and smash them. Keep challenging levels to get a higher rank and score! Giant bosses hide away in the Demon Key. Dodge their attacks, pick up magic items and fight back. Retrieve the long-lost UFO99 letter gems! Features of UFO99: #Super Easy - Flying & Combat Fly, speed-up, dodge, pick up hammers and smash block monsters! #Super Fun - Local Multiplayer Co-op Game 1-4 player co-op mode. Play with friends and family! #Super Healing - Character Gashapons Over 60 cute, healing characters. Fight with different characters each time! #Super Relaxing - Play Anytime, Even For A Short Time Each game requires only about 1 to 3 minutes. Lots of random levels with endless variations! #Super Exciting - Combat Giant Bosses Giant bosses are in hiding. Stay alert and feel the thrill of this easy-to-play game! #Super Rich - Special Power-up Items 5 special power-up items allow you to always be the winner! #Super Cute - Colorful Graphics The various bright colors and cute styles can light up your day! Tons of gold coins and items are given away each day!Download now to get countless gifts! Start playing today!
Janken Samurai
Engage in strategic combat across various ranks and a challenging Lethal mode. Explore an endless roguelike adventure with unique maps and a leveling system. Compete globally on leaderboards.
- Ranked arena progression
- Lethal combat mode
- Online leaderboard competition
- Endless roguelike quest mode
- Unique maps and leveling system
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Work your way through the ranks (1st Dan, 5th Dan, and 10th Dan) in the arena. Bring those skills to the life and death Lethal mode and compete on the online leaderboard against players from around the world. Take on Quest Mode! An endless roguelike mode with 6 unique maps and an all new leveling system. How many will fall to your blade?
Screenshots
Verdict
The clearest difference is in-app purchases: Janken Samurai at none against UFO99's 10. Janken Samurai also leads on ads (none vs shown) and rating (4.5 vs 4.2). UFO99's advantage is update cadence (every 2 days vs monthly) and review sentiment (69% vs 57%). On price, ratings volume, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. UFO99 sells 10 one-off in-app purchases. Janken Samurai asks for nothing beyond the download.
Janken Samurai holds the better App Store score, 4.5 against 4.2. Both are backed by a comparable volume of ratings — 41 and 15 respectively. Written reviews complicate that: 69% of UFO99's written reviews are positive against 57% of Janken Samurai's, so the app with the better star average is not the one people write more warmly about.
UFO99 ships an update every 2 days, Janken Samurai monthly. Both last shipped on November 3, 2026.
| Parameter | UFO99 | Janken Samurai |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (41 ratings) | 4.5 (15 ratings) — better |
| Positive reviews | 69.0% of reviews — better | 57.1% of reviews |
| Number of ratings | 41 — better | 15 |
| Update frequency | Every 2 days — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12 | 11.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 172 MB |
| Age rating | 4+ | 9+ |
| Developer | I Chen Sheng | Good Good Games LLC |
Customer experience
UFO99
Janken Samurai
In-app purchases
UFO99
- Alpaca$0.99
- Hippo$0.99
- Rabbit$0.99
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- Frog$0.99
- Snail$0.99
- Big White Goose$0.99
- Orange Cat$0.99
- Summer Octopus$0.99
- Ad Removal$1.99
- Ad Removal$3.99
Janken Samurai
No in-app purchases
