Space Marbles! vs Bullet Train!
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Space Marbles!
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The goal of this game is simple : you need to match at least three balls of the same color and explode them. It's harder than you think, have fun!
Bullet Train!
Engage in a thrilling arcade experience where you upgrade your ammunition to inflict maximum damage on enemies. Earn coins by destroying foes to enhance your bullet belt and firing speed. Become a master of destruction with increasingly powerful projectiles.
- Extend bullet belt
- Upgrade ammo
- Inflict more damage
- Destroy enemies
- Increase firing speed
- Earn coins
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Improve your bullets and inflict more damage to your enemies as you progress through the game. Upgrade your ammo belt and bullets with the coins you earn as you destroy your enemies. With each upgrade, your bullets become deadlier, delivering devastating blows to your enemies. Increase the firing speed as you tap on the screen. More taps, more bullets!
Screenshots
Verdict
The clearest difference is in-app purchases: Space Marbles! at none against Bullet Train!'s 10. Space Marbles! also leads on update cadence (daily vs weekly). On price, ads, 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. Bullet Train! sells 10 one-off in-app purchases. Space Marbles! asks for nothing beyond the download.
Space Marbles! ships an update daily, Bullet Train! weekly. The most recent releases landed on March 4, 2026 and September 5, 2026 respectively.
| Parameter | Space Marbles! | Bullet Train! |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.3 (770 ratings) — better |
| Positive reviews | — | 11.1% of reviews |
| Number of ratings | — | 770 — better |
| Update frequency | Daily — better | Weekly |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 | 11.0 |
| Further details — not scored | ||
| Size | 80 MB | 177 MB |
| Age rating | 4+ | 12+ |
| Developer | Ahmet Ikbal Adlig | Upperpik Oyun Yazilim ve Pazarlama Ticaret Anonim Sirketi |
Bugs and requests
Space Marbles!
Not enough reviews yet to summarise bugs or requests.
Bullet Train!
Reported bugs
4 issues- Missions trophy crashes the game
- Game freezes when clicking on missions
- Paid for no ads but still have ads
- Free bonus ad clock not working properly
Requested features
2 requests- Need more guns and harder enemies
- Fix the free bonus ad clock
In-app purchases
Space Marbles!
No in-app purchases
Bullet Train!
- Drone$1.99
- Captain$2.99
- Sergeant$2.99
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- Flamethrower$2.99
- Grenade$2.99
- No Ads$3.99
- Spy$3.99
- Air strike$3.99
- President$4.99
- Ammo pack$4.99
