Serious Scramblers vs UFO99
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Serious Scramblers
Dive into a challenging arcade experience where you fall through a bottomless pit, overcoming obstacles and leveling up. Unlock new characters and face massive boss fights in this intense, jumpless platformer.
- Intense arcade action
- Level up with obstacles
- Unlock new characters
- Massive boss fights
- Leaderboard rankings
- Chip-tune music
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A seemingly bottomless pit has appeared and bloodcurdling shrieks can be heard from the depths below. What lies in the deep? The only reasonable thing to do is to jump in and find out! Overcome insurmountable odds in this highly challenging jumpless platformer! Welcome to Serious Scramblers! Features: • Fall your way through the super intense arcade action • Level up with challenging obstacles • Unlock new characters to supercharge you to the next level • Get ready for the finale - MASSIVE BOSS FIGHT • Mark your victory on the leaderboard • Enjoy with some real sweet chip-tune music while playing the game
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!
Screenshots
Verdict
The clearest difference is update cadence: UFO99 at every 2 days against Serious Scramblers's every 3 months. Serious Scramblers's advantage is rating (4.5 vs 4.2) and ratings volume (224 vs 41). On price, review sentiment, ads and in-app purchases 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. Serious Scramblers sells 2 one-off in-app purchases and UFO99 sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Serious Scramblers holds the better App Store score, 4.5 against 4.2. That said, the two scores are not equally well evidenced: Serious Scramblers has 224 ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 70% of Serious Scramblers's written reviews are positive against 69% of UFO99's.
Serious Scramblers ships an update every 3 months, UFO99 every 2 days. Both last shipped on November 3, 2026.
| Parameter | Serious Scramblers | UFO99 |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (224 ratings) — better | 4.2 (41 ratings) |
| Positive reviews | 70.4% of reviews — better | 69.0% of reviews |
| Number of ratings | 224 — better | 41 |
| Update frequency | Every 3 months | Every 2 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 12 |
| Further details — not scored | ||
| Size | 21 MB | 43 MB |
| Age rating | 4+ | 4+ |
| Developer | Yong Kian Chin | I Chen Sheng |
Customer experience
Serious Scramblers
UFO99
Bugs and requests
Serious Scramblers
Reported bugs
10 issues- Game crashes unexpectedly during gameplay
- Game crashes at critical moments near victory
- Controls fail to register player input
- Character moves opposite to intended direction
- Hearts mechanic doesn't function properly
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- Negative coin balance glitch
- Unintended character unlocks after crashes
- App minimizes when clicking side arrows
- Hitbox detection issues with enemies
- Performance lag on lower-end devices
Requested features
11 requests- Jump button or additional movement mechanics
- Power-ups and special abilities system
- More levels and content variety
- Character upgrades and progression system
- Versus/multiplayer mode
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- Infinite/endless mode
- Challenge modes
- More unique boss mechanics
- Adjustable control sensitivity
- Reduced ad frequency or shorter ad durations
- Multiple continue options per level
UFO99
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Serious Scramblers
- Remove Forced Ads + 200 Coins$1.99
- Support the dev: play as Chiny$2.99
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
