Your mission in N2O: Nitrous Oxide is simple: Fly a ship called a tunnel runner into nitrous oxide filled tubes, and destroy the enemies they hold within. These enemies are mutated insects, including beetles, mosquitoes, flies and wasps. For each enemy you kill, your runner increases in speed.
The tubes themselves are psychedelically multicolored, with ever changing patterns and landscapes. They are filled with nine different bonus weapons that can be added to your runner.
You have the option of customizing your runner's shape, color and texture to your liking. The shape you select will affect the braking and turning speed of your runner, while the color and texture customizations are purely aesthetic.
N2O: Nitrous Oxide features a soundtrack by The Crystal Method.