Orange Hunt

Project Overview

Duration: August 25, 2025 - August 29, 2025
Location: Ehime Prefectural Industrial Technology Research Institute, Japan
Technologies: HoloLens 2, Unity, MRTK (Mixed Reality Toolkit)

During this internship, I developed “Mikan Hunt” (Orange Hunt), an augmented reality game where players interact with virtual objects in a mixed reality environment. The project was all about getting hands-on with AR fundamentals and creating an engaging, intuitive gaming experience using Microsoft’s HoloLens 2 platform.

A peek into the Mikan Hunt game.

Game Concept and Mechanics

The AR Mikan Hunt game creates an interactive experience celebrating Ehime Prefecture’s most famous product—oranges!

Core Gameplay:

  • Picking Oranges: Grab virtual oranges to score points and hear satisfying success sound effects
  • Avoiding Objects: Touch other objects (like apples) and you’ll lose points with accompanying failure sounds
  • Intuitive Controls: Direct hand manipulation means instant immersion and natural interaction—just reach out and grab!

The game focuses on natural, gesture-based interaction, making AR technology feel accessible and fun. Players engage with the virtual world through familiar physical movements, no complicated controls needed.

UI Components:

  • Virtual coin particle effects for scoring feedback
  • Real-time score display
  • Integrated visual and audio feedback
  • Spatially optimized UI designed specifically for mixed reality

Project Demo

Watch the full gameplay demonstration to see the AR Mikan Hunt game in action on my YouTube channel!

Source Code

The complete source code for this project is available on GitHub.
View on GitHub

Key Learnings

Through this intensive 5-day internship, I gained hands-on experience with:

  • Mixed Reality Toolkit (MRTK) setup and configuration
  • Unity 3D scene creation and viewport calibration for AR environments
  • Object manipulation and physics system implementation
  • Audio-visual feedback integration for enhanced user experience
  • Spatial UI design principles tailored for mixed reality
  • HoloLens 2 hand-tracking and gesture recognition systems

This internship was supported by the JST SPRING-GX program.