You can't. Just avoid them for 6 or 7 sets (about 2 minutes of flying) and then you will be able to get close enough to knock her down.
Betty Jetty's not on TimeTangked Island she's on Super Power Island
The hero who defeats Betty Jetty will receive the Island Medallion! (hmm...see the related question)
Hide in the screen you'll win pinky promise
When you chase Betty Jetty, stay back from her so that you can dodge the green glowing spheres. You only have to chase her for about 2 minutes before you can get close enough to run into her.
There are no weapons on the island. Betty Jetty can throw energy balls at you.
go to superpower island and when you deafeat betty jetty ned noodle head wil deafeat betty jetty for you and he will be wearing his super hero outfit and he is wearing whitey titeys! click on the green shirt which is the costumeizer and costumeize him!
She can be found either the Super Power Island or Reality TV island (sometimes)
All you have to do is fly behind her for about 2 minutes without getting hit by the green energy spheres. Stay back and dodge them, and eventually you will be able to get close enough to run into Betty Jetty and knock her down.
You Have to defeat all the villains on super power island except Jetty Betty.
At the end of Super Power Island, you go to the phone booth. (click on it) Then, you will get flight!!!!!!!!! You have to defeat Betty Jetty!!!!!!!!!
Betty Jetty
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.