You control a nanorobot with the task to clean the clouds by breaking toxic molecules back to oxygen.
Use UP to accelerate, DOWN to brake and LEFT and RIGHT to turn.
Catch the blue (oxygen) molecules and avoid the rest.
Feedback from the experts
Lee Reilly: Nice little variant of Asteroids that's just the right amount of challenging. Graphics and arcade font/colors took me back - well done! One thing I'd consider adding, if could can squeeze it into 13kb, is a way to restart the game when you win/lose without using the browser refresh button.