'Korra Alone' was praised by critics as one of best episodes of the entire series, described by Nicholson as 'masterful and heart-wrenching.' 'Day of the Colossus' received positive reviews for its action sequences, described by ScreenCrush's Matt Patches as '22-minutes of set-piece wizardry, featuring some of the most imaginative, heart-pounding action I've ever seen.' In contrast, the clip show 'Remembrances' was singled out as a weak point in the season. The series' final shot, intended to show Asami and Korra becoming a romantic couple, was seen as pushing the boundaries of LGBT representation in children's TV. Nicholson also praised the season for its handling of themes like war, dictatorship, weapons of mass destruction and posttraumatic stress disorder. IGN's Max Nicholson felt the overarching plot of Kuvira's military campaign was not as ambitious as previous seasons', though he still enjoyed it. Critics generally enjoyed the main villain Kuvira and thought she complemented Korra well. The season was generally well-received by critics. Aired as episode 8, 'Remembrances', the clip show was also intended as 'a lighthearted romp' similar to Avatar: The Last Airbender 's episode ' The Ember Island Players' before the series enters its dénouement. Inspired by Samurai Champloo 's clip show episode 'The Disorder Diaries', they chose to frame a series of edited clips from the previous seasons of The Legend of Korra with about five minutes of new animation.

After Nickelodeon cut the budget for season 4 by about the amount required for one episode, DiMartino and Konietzko decided to include a clip show episode, which reuses previously produced animation, instead of letting many of the creative staff go.

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