At the Tenori-on Report, Toshio Iwai writes that the European version of Electroplankton has arrived from Nintendo.
I took a photo of it with other releases.
The upper is the European version and the manuals(each languages).
The lower left is the original Japanese version, the lower right is the North-American version. The color of European version is slightly pale blue and the package itself is translucent, so it is more cool-looking impression.
Electroplankton is a Nintendo DS application that lets users create music using ten different types of underwater plankton.