The light novel adaptation of the anime series Sword Art Online (SAO) quickly became a fan favorite. The series has progressed from the NerveGear death game "Sword Art Online" to the Augma augmented reality game "Ordinal Scale." From the first season onwards, and especially in the film adaptation, viewers see the characters put through their paces in a number of different gaming worlds. Characters with varying strengths and abilities have emerged from its many gaming settings.