Hattori: Battle Clash — Free-to-Play Mobile Action Game

Hattori: Battle Clash is a free-to-play mobile action game developed for iOS and Android, featuring fast-paced combat, progression systems, and long-term live support.

The project evolved over multiple release cycles, requiring continuous feature development, balance updates, and performance optimization to support live players.

My Role

Unity Developer

• Contributed to core gameplay systems and combat mechanics.

• Implemented and maintained progression, economy, and feature updates across multiple releases.

• Worked with an ECS-based architecture (LeoECS) to support scalable and maintainable gameplay systems.

• Collaborated with designers and artists to integrate new content while preserving performance on mobile devices.

• Supported live game operations through bug fixing, optimization, and iteration based on production needs.

Impact

• Shipped and maintained a live free-to-play mobile title across iOS and Android.

• Supported long-term development through multiple updates rather than a single release.

• Improved gameplay stability and performance on a wide range of mobile hardware.

• Helped evolve gameplay systems while working within an existing codebase and architecture.