Eugene's father, Vincent Patilio was a small-time inventor who turned to crime after failing to make any profit from his work. As the Leap-Frog, Vincent battled Daredevil multiple times with his Frog Suit which gave him the ability to leap great heights courtesy of electrical coils in his boots.
After constant defeat at the hands of Daredevil, Vincent retired from supervillainy; however, his son Eugene was constantly taunted for his father's failures (he even briefly adopted his uncle's surname, Colorito, in hopes he wouldn't be recognized as the son of Vincent). Eugene eventually decided to take revenge on his bullies and took to wearing one of his father's old Leap-Frog costumes, but Eugene decided instead to try and redeem his father's name by becoming the "heroic" Frog-Man.
Frog-Man was a TMNT fused with Toy Biz Angel hands legs and feet, scraped the head and sculpted over a Frog-Man head.