# 0K - Flying bullet train ZERO-KEY -

> Simple tap-based arcade game featuring high-speed flying bullet train gameplay. (iPhone/iPad app by ROUE GARCON CO., LTD..)

- Source: https://appshunter.io/ios/app/0k-flying-bullet-train-zero-key/id1244682520 (this page in markdown: same URL + `.md`)
- Developer: [ROUE GARCON CO., LTD.](https://appshunter.io/developer/1244682519)
- Category: Games, Education, Family, Trivia
- Price: Free
- Age rating: 4+
- Requires: iOS 7.0 · 45 MB
- Languages: Japanese
- Released: 2017-08-04
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/0k-flying-bullet-train-zero-key/id1244682520/reviews.md

## What is 0K?

Get the highest speed bullet train! You will love accelerating your train!
 Super simple action-based game. All you need to do is "tap".

 Operate the flying bullet train named "0 K"(Zero K) and go across 
 "Railroad crossing gates"that will approach on your way.

 【Super easy-simple operation!]
 Upon tapping on the screen , a cute train will jump into the sky! Move
 ahead and get away from the ground and obstacles!

 【The more you move ahead...】
 The more you go across the railroad crossing gates and move ahead, the 
 more your score goes up!
 Then the speed will be accelerated rapidly! Let's reach out to 200km/h 
 and then 300km/h as a maximum!
 Share with your friends and show off your great scores.
 Plus, you will enjoy various sound effects as well as BGM!

## Key features

- High-speed bullet train operation
- Simple tap-to-jump controls
- Accelerating speed up to 300km/h
- Navigate railroad crossing gates
- Score-based progression
- Share scores with friends
- Engaging sound effects and BGM

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/0k-flying-bullet-train-zero-key/id1244682520/reviews.md

### 5/5 — おもろい

*2017-12-15, version 1.0.3*

まぁまぁ

### 4/5 — 指一本のシンプルゲー

*2017-11-14, version 1.0.3*

指一本で出来るから、電車のつり革につかまってても出来るのがイイね。
良い意味で、「ザ・暇つぶし」って感じ。

## Frequently asked questions about 0K

### What is the main gameplay mechanic in 0K - Flying bullet train?

The core mechanic is simple: tap the screen to make the flying bullet train jump over railroad crossing gates and obstacles. The goal is to achieve the highest speed and score.

### Does 0K - Flying bullet train support offline play?

The provided information does not specify offline play capabilities. However, as a simple action-based game, it is likely playable without a constant internet connection.

### What is the maximum speed achievable in 0K - Flying bullet train?

Players can accelerate their train to a maximum speed of 300km/h. The game features rapid speed acceleration as the player progresses.

### How does scoring work in 0K - Flying bullet train?

Your score increases the further you travel and the more railroad crossing gates you successfully pass. Reaching higher speeds also contributes to your score.

### What devices is 0K - Flying bullet train available on?

0K - Flying bullet train is available for iPhone, iPad, and iPod devices.

### When was 0K - Flying bullet train last updated?

The game was last updated on August 26, 2017, with version 1.0.3. It was initially released on August 4, 2017.

### What is the age rating for 0K - Flying bullet train?

0K - Flying bullet train has an age rating of 4+, making it suitable for young players and families.

### Does 0K - Flying bullet train have ads?

No, 0K - Flying bullet train does not contain advertisements.

## Version history (last 4 releases)

### 1.0.3 — 2017-08-26

This app has been updated by Apple to display the Apple Watch app icon.

Minor fixes for improving user experience.

### 1.0.2 — 2017-08-21

Minor fixes for improving user experience.

### 1.0.1 — 2017-08-14

Minor fixes for improving user experience.

### 1.0.0 — 2017-08-04

No release notes.

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All apps by ROUE GARCON CO., LTD.: https://appshunter.io/developer/1244682519

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*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 2026-06-01.*