Boson X is a fast-paced rotational runner set in a particle accelerator. Build up speed inside a massive particle accelerator and generate high-energy collisions to discover strange new particles. Use precise timing and fast reflexes to navigate a subatomic world where floors and ceilings don't exist. Be fast enough to find the elusive Boson X.

A note from the developer: "An Intel Mac with OS X 10.6.8 or later is required. On Mac OS X 10.8, depending on your security settings, you may need to Ctrl-click the app and select "Open" to run it for the first time. Thereafter you can simply double click it as usual."

This is the free version from the official website: http://www.boson-x.com

The leaderboards work, just press [O] after you die.

If you like the game, support the developer, buy it! http://store.steampowered.com/app/302610/