Mutated Bat
Mutated Bat can be found in the following locations: Cemetery Quarter (around 10 underground on the west side along with banshees, and 4 bats on the church roof), Alchemist Quarter (4 found on top of roofs), Arena and Zoo Quarter (2 under the arena with other mutated creatures), Razzachai, Northern Zao Plantations, Souleater Mountains, Middle Spike, Vengoth and Vengoth Castle.
Mutated Bat has 900 hitpoints. It is immune to earth, drowning, and death damage. It can neither be summoned nor convinced.
Mutated Bat yields 750 base experience points. Its loot can include black pearl, gold coin, small amethyst, energy ring, battle shield, black shield, obsidian lance, star herb, bat wing, mercenary sword, heavily rusted armor, rusted armor, batwing hat, and mutated bat ear.