The player controls a small character, Hugie Wugie, who must navigate through a gap in a series of obstacles that continuously move downwards.
The objective is to time the character's flapping precisely to clear the gaps, avoiding collisions with the obstacles. The player's goal is to progress as far as possible without failing.
The game takes place entirely within a web browser, with no requirement for download or registration. The player's actions determine how long they can survive, and the game ends when Hugie Wugie collides with an obstacle. The core mechanic is the timing of the flapping, requiring reaction and precise timing to succeed.