Cinderella Girls Gekijou is enjoyable for fans of the iDOLM@STER series who want a short fun extension of the series. The five minute episodes are split into three scenes, that are generally allotted to one or two characters at most. Scenes typically follow the 4-koma panel joke set up of setting, build up, punchline and tsukkomi.
Plot is minimal and serves purely as fan-service, (not sexual), which is why it is hard to enjoy without being an iDOLM@STER fan. While the recent iDOLM@STER Cinderella Girls anime features several girls in Gekijou's cast, there are also several cast members from the game series included.
Art and sound are
minimalistic, ocassionally becoming more pronounced during close-up scenes or fan-service moments. On the other hand, ending themes are pleasing 30 second excerpts of their full version songs. Since series focuses on character fanservice, it is more enjoyable if you like iDOLM@STER's cast. However, fans of the original iDOLM@STER cast will rarely see representation for its characters.
As said before, Cinderall Girls Gekijou is a short and fun experience for fans who enjoy the ambiance and cast from the iDOLM@STER series. However, viewers looking for a plot heavy or serious show will be left disappointed.
Obviously shorts series like this usually aren't up to much since their very nature means they don't have any time for a real plot or much characterization, but they usually manage to get a few jokes in and be somewhat enjoyable. Not so with this series. Part of the problem is that the episodes are even shorter than usual, at about 2:30 once you take out the OP and ED, and they're then divided into three shorter segments! So you're looking at segments of under a minute each, which isn't much time to do anything. But even at that, the stories (such as they are)
just don't offer anything of value at all. No jokes, no nothing. Worse, they're apparently based on the game, rather than the anime, which does mean that we get to see some of the characters who didn't make it into the anime, but also means that rather than our buddy P-kun, we have these teenage girls trying to seduce the producer character, which is just gross.
I will say the first episode isn't bad - it covers Miku bribing Anzu to work using candy, and Takumi (my girl!) crushing on Chieri - but the rest are pretty hopeless. Just dull.