Sure! Here's a sample implementation of the "Huggy Wuggy Chase" game in a single HTML file using JavaScript:
This code sets up a simple game where the player (represented by a blue rectangle) chases and "catches" the Huggy character (represented by a red rectangle) by moving left and right using the arrow keys. The game keeps track of the score and updates the position of Huggy as the game progresses.
Feel free to modify and enhance the game further as per your requirements.