Please note: This review is written by a person, who does not speak japanese but has watched the series in the original version without any subtitles.
When I first discovered the existence of this anime by finding its openings, I thought of it as being digimon, but without digimon references. Although the similarities are quite obvious, Plusterworld creates its very own world with many lovable, interesting and unique characters.
The story is more loosely than usual for that genre, many episodes tell a story for themselves, without being very related to the main arc. Also, there can be episodes, wich are not only boring, but seem totally
irrelevant. (Why are there car races?? Its SO unnecessary!!!)
However the episodes, which are not recap, filler, or car race, tend to be quite exciting.
I personally like the art style of early 2000's anime, so I enjoied it. The animation is not allways high-quality. But decent standard for the genre.
The main problem of Plusterworld is the absence of good songs. Unlike in digimon and similar series, Plusterworld has no songs being played during the episodes. The transform sequences are accompanied by generic background music.The only good song is the second opening wich is well used during the last episode. The first opening and the ONLY ending theme are only enjoyable as being "nice trash".
Did I mention that the characters are amasing?
Some of them are very cliché, some are very unique, also in their visual design. But its a nice mixture of both.
I would have liked it much more, if the music had been better!
I do not recommend it to anyone who has not watched other similar series like digimon frontier or brave beats.
You should NOT watch it when you dislike childish series.
It has a very simple language and can also be understood by people not being fluent in japanese.