You'll find a phone ringing when you first get to super power island, you must beat all of them and the phone is located by the superhero costume store.
You have to beat all 5 of the other villains to get to Betty Jetty because once you defeat all the other villains you get your powers and you can fly. (see related question)
answer the phone then click on the little guy on the bottom left
Beating the first 5 villains gets you your Flying Power. But when you beat Betty Jetty, your "sidekick" tackles her, and Ned Noodleman gets the Island Medallion. Go to his comic shop and ask him about it, and bring a hot dog.
You need to defeat 5 villains before you are able to get the ability to fly. Make sure to check your hero ID and your file to see how many and which villains you have to capture.
after you beat 5 villains you go to the telephone in says ring click it and you get the power
after you beat the 5 gym you have to go to route 6 and battle bianca after you beat her she will give you fly
You can't. You need to be able to fly after her, and this is the final battle of the game. Beat the other 5 super villains, then answer the ringing pay phone to get your flying power. (Your Superhero ID keeps track of the five villains you must defeat.) (see related question)
A fly has to beat its heart faster than larger animals to support the blood circulation. Flies can beat their hearts at about 5 Hertz.
After defeating 5 villains answer the phone near the newspaper building. Then talk to the old super hero at the top of the building.
Defeat the other 5 super villains (all but Betty Jetty). When you walk past the telephone booth, it will ring. Answer the phone and you will be given the power to fly. Now you can go after Betty Jetty, on the skyscraper Downtown.
You can take the 5 super villains in any order, because you still have to return to the Prison after each capture. The only one you cannot capture (until last) is Betty Jetty, because you have to be able to fly after her.
In order to get the power to fly on Super Hero Island, you have to defeat 5 super-villains with your wits alone. Once you do, the phone in the phone booth will ring. Answer it to get your flying power. Click on the little icon at the bottom left of the screen to turn the power on and off. You need to fly to beat the final super-villain, Betty Jetty. (see related questions)