Ravenous Zombie Mouse
From MHWiki
"The strength of this mouse is only exceeded by its hunger. Ravenous Zombies instill fear in almost all hunters who cross their paths. This mouse seems to tenaciously take damage from even the most capable of trap weapons without slowing down. Luckily they do not often wander far from their graves."
The Ravenous Zombie Mouse is a breed of mice only found in the Mousoleum. They are worth at least 5,400 Gold and considered overpowering to catch.
Ravenous Zombie Mice are invulnerable to the Physical Power Type, so Shadow traps must be used to catch them.