(en) « Popotanseries review », AllMovie (consulté le ) : « They stop every so often to help whomever they can [...] The sisters try to leave things better and happier each time they depart from a new place ».
(en) « Popotan, Vol. 3: Decisions of the Heart [DVD] », Target.com (consulté le ) Popotan: Enigma (Shinichiro Kimura), Long Beach, California, Geneon, (1re éd. 2003) (en) Popotan: Decisions of the Heart (Shinichiro Kimura), Long Beach, California, Geneon, (1re éd. 2003).
(en) Mike Toole, « Popotan vol. 1 » [archive du ], Anime Jump (consulté le ) : « it was created specifically to sell DVDs, tiny figurines, and other merchandise to introverted adult men ».
(en) Carlo Santos, « Popotan - DVD 2: Engima », Review, Anime News Network, (consulté le ) : « For an anime that was adapted from an ecchi game, it's got a surprising amount of substance ».
(en) Martin, Theron, « Popotan: DVD - Complete Collection », Review, Anime News Network, (consulté le ) : « The writing still has its problems at that point, as it forces through some developments a bit too quickly and shallowly, but the last two episodes delve well enough into the dynamics between the sisters and concerning their journey that they are actually watchable, even solid. As bad as the series is at the start, it is distinctly better at the end. ».
(en) Carlo Santos, « Popotan - DVD 2: Engima », Review, Anime News Network, (consulté le ) : « You know how there are people who can't get through Chobits because it keeps turning into kiddie porn in between plot points? Popotan is that kind of show, but taken to a much more extreme level. »
(en) Martin, Theron, « Popotan: DVD - Complete Collection », Review, Anime News Network, (consulté le ) : « Why would Sentai Filmworks bother to “license rescue” this onetime Geneon title? The answer comes early and often: plentiful fan service. »
(en) Carlo Santos, « Popotan - DVD 2: Engima », Review, Anime News Network, (consulté le ) : « Popotan's pleasant, happy-go-lucky soundtrack is the work of Osamu Tezuka [...] Musician Tezuka goes with the less-is-more philosophy ».
(en) Carlo Santos, « Popotan - DVD 2: Engima », Review, Anime News Network, (consulté le ) : « The biggest weakness is Mii and her ridiculous little-girl voice [...] it's really Mea who shines with her deadpan dialogue ».
(en) Chris Klug et Josiah Lebowitz, Interactive Storytelling for Video Games : A Player-Centered Approach to Creating Memorable Characters and Stories, Focal Press, , 332 p. (lire en ligne), p. 194.
(en) Don Houston, « Popotan - Vanishing House », Reviews, DVDtalk, (consulté le ) : « was full of surprises for even a jaded old reviewer like myself. ».
(en) Don Houston, « Popotan - Enigma », Reviews, DVDtalk, (consulté le ).
(en) « Geneon Press release announcement », ICV2 (consulté le ) : « about three sisters who live in a house that travels through time ».
ign.com
(en) « Oshiete! Popotan PS2 », sur IGN.com (consulté le ) : « 8 female characters can become the target of your affection [...] The PS2 version retains the 18 and over status of the PC version. »
(en) IGN Staff, « Now Playing in Japan », Playstation 2 News, IGN, (consulté le ) : « Publisher: WellMADE [...] Release: 03.11.04 ».
(en) Mike Toole, « Popotan vol. 1 » [archive du ], Anime Jump (consulté le ) : « it was created specifically to sell DVDs, tiny figurines, and other merchandise to introverted adult men ».