Like many of Batman's best villain, Kirk Langstrom is the amplification and/or opposite of Batman's attributes. Batman takes on the image of a bat to strike terror into criminals, the better to protect the innocent and seek justice. Conversely, the scientist Langstrom creates a serum intended to bestow a bat's sonar capabilities on humans, but accidentally transforms himself into the monstrous Manbat, striking terror into the innocent and guilty alike.
I drew this in photoshop for the Daily Sketch Challenge and this time ACTUALLY stuck to the 30 minute schedule! yay, me!