Mouse Droids also known as MSE-6 Droids, were general-purpose droids used by the Galactic Empire. Their main purpose is carrying documents, and they usually took only one assignment at a time. The Empire had many mouse droids, and hundreds could be found on each ship.
Role in Lego Star Wars
Mouse Droids have been included in three sets so far. They first appeared in 2006, in a set called Imperial Star Destroyer. The Mouse Droid was made out of 9 pieces, all of them black and grey. Another Mouse Droid minifigure was released 2 years later, in 2009, in the Death Star set. Two years later, in 2011, another Mouse Droid came out. This one was a small bit different, by having lighter grey pieces in the middle.
Appearances in Lego®