How do you become a superhero on Super Power island?
First you go to the shop called Masks & Capes. They have some costumes, but more importantly, the official Superhero ID Card. (Now you can become a SUPERHERO!)
(see related question)
After you defeat your 5th villain, go to the ringing phone in the telephone booth and you will get super flying power. Then you can chase Betty Jetty.
When you enter Super Power Island, you cannot go to Downtown until you have the materials you need from the County Prison (left of Main Street). To get to see the warden, you need to be an official Superhero, and you can get your Superhero ID from the Masks and Capes store (you do not have to wear a costume).
Once you beat the first 5 super villains, you get the flying super power to chase Betty Jetty. After she is knocked out by Ned Noodlehead, he becomes a hero and gets the Island Medallion. Ned is in his comic book shop. He is too busy to be a superhero. Give him a hot dog and he will give you the Island Medallion.
The tired (retired) superhero is on top of the Daily Paper building on Main Street. He tells you that you need to defeat the first 5 supervillains (all but Betty Jetty) without any super powers. But you don't need to see him when you do, because the pay phone will ring anyway, giving you the Super Flying Power you need against Betty Jetty. (This island is the best place to play ad-games because you can…