"In the end, Mighty No. 9 received mixed reviews from critics, getting a 57 overall in OpenCritic. IGN rated it a 5.6 out of 10, stating that “despite its pedigree, Mighty No. 9 doesn’t seem to have a good sense of what was fun about Mega Man, or 2D action-platformers in general.” GameInformer gave the game a 6.0 out of 10, stating that it is “the kind of nostalgic gaming that makes you want to play the original Mega Man games instead.” Gamespot gave it a 5 out of 10, saying “Mighty No. 9 is occasionally fun and inventive, but it fails to leave a lasting impression.” The Jimquisition gave it a 4.0 out of 10.0, saying that “much like an anime fan on prom night, I would rather be at home playing Mega Man than here.”