Magnetica (JP) is a Nintendo published puzzle game for the Nintendo DS. It was released in mid 2006 for Japan and North America, and early 2007 for Europe. The game is considered by many to be very complicated and challenging, which is occasionally the reason for some of the low grades.
In the game, plenty of different colored marbles roll down a path. If you are able to get three same colored marbles to touch, then they will disappear, thus giving you points.
The European version of Magnetica, which is called Actionloop, is the only version to include the Rumble Pak feature.