Critics widely consider this one of the greatest episodes in television history for its scale and emotional weight.

: Reviewers from IMDb focused on the high-stakes multiverse crossover and the surprising reveal of the episode's true villain.

Since "[S2E9] Episode 9" refers to many popular series, the most famous "Episode 9" in television history is Game of Thrones (S2E9: " Blackwater ")

: The A.V. Club praised the episode for its "unsentimental depiction of warfare," interpreting it as a sharp critique of the political systems that perpetuate such violence. Other Notable Season 2, Episode 9s