INDEPENDENT DEVELOPMENT · TOKYO

HOTARUSTUDIO

We independently develop games and practical apps. Each project has its own experience and visual language, shaped around its users, purpose, and context.

SELECTED WORKS

Work

Each project opens into its own design world.

01 / GAMEIn development

HEAD CLASH
iOS · Android

SIMULTANEOUS PHYSICS DUEL

HEAD CLASH

Choose your movement, then launch both fighters’ heads at once. Bank shots off pillars and walls, slip past neck defenses, and hit your opponent’s body in a simultaneous physics duel.

Plan and strike together
Ricochet route tactics
AI · Online 1v1

Explore the game

In development for mobile. Public downloads are not available yet.

Illustration of two fighters stretching their necks and colliding in an island arena

Head Clash gameplay with both fighters attacking in a circular arena — ACTUAL GAMEPLAY

Gem Warrior characters fighting in a physics-based arena

PHYSICS FIGHTINGGEM WARRIOR

02 / GAMEAvailable now

iOS · Android

魔晶闘士
無限格闘戦争

Combine skill gems to build a fighting style of your own. Launch opponents across physics-driven battles and arena PvP. Available on iOS and Android.

Build with skill gems
Physics-driven combat
Arena PvP

Explore the game → Privacy policy

03 / APPLICATIONComing soon

FXTRADE PROJECT
FOR iOS

USD/JPY DECISION SUPPORT

USD/JPY
Advice

Bring live USD/JPY quotes, technical indicators, positions, and margin conditions into one view, with structured AI analysis to support your decisions.

MARKET: USD / JPY
INDICATORS: Trend · RSI · ATR
LANGUAGE: 日本語 · English · 简体中文

Explore the app → Privacy policy

Information and decision support · No broker account connection · No trades placed for you

USD/JPY live rates and technical indicators screen

AI analysis and risk information screen (Simplified Chinese version)

REAL-TIMERATE · CHART · RISK

04 / STUDIO

Built independently.
Maintained for the long run.

HOTARU STUDIO handles prototypes, visuals, development, and ongoing maintenance. Every product has its own goals and design system, with shared standards for usability, clear explanations, and privacy.

BASE: Tokyo, Japan
PLATFORMS: iOS · Android
CONTACT: mugencombat34@gmail.com

CONTACT

Project inquiries and support

mugencombat34@gmail.com ↗