Bullet'nSurf vs TRIAL UNIT2
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Bullet'nSurf
Experience an extreme Japanese-style bullet hell shooter where you shoot and ride on the wave of a return cartridge. Choose from four unique 'Surf Rider' types, each with distinct shooting and combat abilities, and master the exhilarating bullet-back shot system to achieve high scores.
- Japanese-style bullet hell shooting
- Ride on the wave of a return cartridge
- Four distinct 'Surf Rider' types
- Surf Sword for close combat
- Bullet-back shot system (Bullet Surf)
- Score magnification via Surf rate
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--------------------------------------- Bullet'nSurf is Japanese style 'bullet hell' shooting game! --------------------------------------- Shoot and ride on the wave of a return cartridge! Extreme bullet hell Japanese style shooting game. BULLET'N SURF ['Surf Rider' of the 4types that can be selected] 01:Wide and Narrow This 'Surf Rider' with high flexibility which changes and fights a wide shot and a concentration shot. 02:FREE STYLE And free shots can be divided into left and right shot Possible to switch the lock shot of front fixing! 03:SWORD MASTER Close combat type range distance is short. Can be used to 'Surf Sword' to open off the barrage! ('Surf Sword' charge by three at a certain time. It can stock up to up to 12.) 04:GOLDEN TWIN TAIL 05:AUTO AIMING * If you tap the weapon button in the lower right of the screen, And switching of the shot, you can use 'Surf Sword'! [Exhilarating new sensory system!] Bullet-back shot 12way might occur if you defeat the enemy! If you defeat the enemy to take further the bullet-back shot ... Bullet-back shot occurs again! (Bullet Surf) It is possible to shoot down enemy aircraft one after another in succession! As you connect the bullet-back shot, Also rise (score magnification) Surf rate, I can aim at a high score! To increase the own machine and earn score, and try to achieve the all clear! (8 Million Every extended setting.)
TRIAL UNIT2
Engage in a straightforward shooting game controlled by simple screen swipes. Select your weapon and difficulty level to begin, with progressively higher levels becoming available as you advance.
- Swipe-based gameplay
- Weapon selection
- Level progression
- Simple controls
- Shooting mechanics
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It is a simple shooting game which can only play swiping a screen right and left. A game is started after choosing weapon and level on a title screen. Higher level can be chosen now according to advance of a game.
Screenshots
Verdict
The clearest difference is price: TRIAL UNIT2 at Free against Bullet'nSurf's $1.99. TRIAL UNIT2 also leads on update cadence (every 10 days vs every 4 months) and iOS requirement (12.4 vs 15.6). Bullet'nSurf's advantage is ratings volume (5 vs 1). On rating, ads, in-app purchases and device support 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
TRIAL UNIT2 is free to download; Bullet'nSurf costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Bullet'nSurf against 5.0 for TRIAL UNIT2. That said, the two scores are not equally well evidenced: Bullet'nSurf has 5 ratings behind it against 1, so its average is the more settled of the two.
Bullet'nSurf ships an update every 4 months, TRIAL UNIT2 every 10 days. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.
| Parameter | Bullet'nSurf | TRIAL UNIT2 |
|---|---|---|
| Price | $1.99 | Free — better |
| Rating | 5.0 (5 ratings) | 5.0 (1 ratings) |
| Positive reviews | 77.8% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Every 4 months | Every 10 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.6 | 12.4 — better |
| Further details — not scored | ||
| Size | 82 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | koji shimono | Satoru Takahashi |
Customer experience
Bullet'nSurf
TRIAL UNIT2
In-app purchases
Bullet'nSurf
No in-app purchases
TRIAL UNIT2
No in-app purchases
