The first and original Man-Bat was Dr. Kirk Langstrom. He wanted to cure deafness and experimented on bat's sonar sense and soon developed a bat extract hoping it could be the cure. He injected himself with the serum but instead of curing his deafness, he became Man-Bat. In the future (Batman Beyond), a new Man-bat emerged and it was Terry McGinnis. His DNA was infused by bat DNA which transformed him into Man-Bat but was later returned to normal by old man Bruce Wayne.

Here's my take on Man-Bat. Hope you guys like it! :)

Parts:
Head - 3.75" Red Skull (sculpted the ears and sculpted details on the head and forehead)
Body - MU Darkhawk (sculpted details on the thighs and legs)
Wings - cut out pieces of microwaveable food keeper with sculpt work