In the game, a bat orbits a screen edge, flying upwards to navigate a course filled with wind currents and invisible obstacles.
The player guides the bat to avoid collisions by tilting the screen, catching wind currents to slow descent, and judging bar clearances to conserve momentum. The main challenge lies in maintaining a constant speed and height to traverse a series of increasingly narrow bridges that span the screen. Without viewing the screen outside the gameplay area, the player controls the bat's flight through dependence on spatial reasoning and instant feedback. The game can be played directly in a web browser, with no need for a separate download or registration.