Physiological Feedback in Gameplay: Heart Rate-Responsive Flappy Bird

Related Coursework | Physiological Computing | Tallinn University

Overview:

In this project, my classmate Haris and I explored how real-time heart rate variability (HRV) can influence game design and emotional engagement. We connected a pulse sensor to a Unity-based clone of Flappy Bird, using physiological data to affect gameplay.

Background & Goal:

Heart rate variability (HRV) is a key indicator of stress and resilience, revealing emotional and neural states. Our goal was to prototype a self-adjusting game system that adapts difficulty based on the player’s real-time physiological state—merging emotional awareness with game mechanics.

Physiological Loop:

• Player attaches a pulse sensor (finger or earlobe)

• Sensor streams HRV data to the game system

• The game (Flappy Bird) responds to the player’s internal state—eventually adjusting difficulty or responsiveness in real time

Roles & Collaboration:

• I focused on the theoretical framework, covering affective computing, biofeedback, and HRV interpretation

• Haris led the technical implementation, integrating HRV input into a Unity-based Flappy Bird prototype

Reflection:

This project demonstrated how physiological computing can enrich gameplay by creating emotionally adaptive systems. It highlights potential applications in stress-aware design, mental wellness, and personalized play experiences.