Ninja Mouse
From MHWiki
"Known for its extreme rarity, speed and intelligence the ninja mouse is one of the most challenging mice to catch. A hunter will learn much from catching such a cunning foe and is therefore worth a bundle of points."
The Ninja Mouse is a breed of mice found in various locations. They are worth at least 350 Gold and considered moderate to catch.
Ninja Mice from the Mountain occasionally drop Burroughs Laboratory Map Pieces, giving Master hunters access to the Laboratory.