When a job is completed to 100%, this is flagged with a star. The first five times, a bronze star is awarded. The second sixth to tenth times, a silver star, and the eleventh to fifteenth times, a gold star. Completing a job more than 15 times does not award any more stars. The total energy cost to complete a job for a silver star is double that for a bronze star, and for a gold star it is doubled again.
Silver and gold stars are not yet enabled for all areas in the game.
In addition, every time a star is awarded, a stat point is, too.