Happy Wheels is a ragdoll physics browser game created by Jim Bonacci and released in 2010, in which players ride bicycles, wheelchairs and other vehicles through obstacle courses filled with spikes, mines and collapsing platforms. Because injuries are frequent and deliberately over the top, short damage sounds from crashes became a recognisable part of gameplay videos shared on YouTube and other platforms. The clip remains popular because it instantly signals a painful fail without needing any context, making it easy to reuse in edits, streams and reaction videos.