You have to avoid being hit by the green power orbs she throws. Usually 6 or 7 sets are long enough -- you chase her for less than 2 minutes before you can get close enough to run into her. The more you get hit, the longer it takes. (If you are hit 5 times, you have to start the chase over.)
You Have to defeat all the villains on super power island except Jetty Betty.
Betty Jetty's not on TimeTangked Island she's on Super Power Island
A person can defeat Betty Jetty on Super Power Island by avoiding the lasers she shoots. This makes her mad and allows the comic book shop owner time to defeat her.
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.
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!!!!!!!!!
The hero who defeats Betty Jetty will receive the Island Medallion! (hmm...see the related question)
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)
you get the phone ringing when you defeat 5 villains and that is how you get the flying ability to catch Betty Jetty.
You can do the 5 non-flying villains in any order. You have to defeat the other 5 before you receive your flying power and then you can chase down Betty Jetty.
First you defeat all the bad guys in super power island but not betty jetty then you will recive a phone call in the phone booth then you can fly.
If you defeat the other 5 super-villains (using your wits alone) you will get the flying power you need to defeat Betty Jetty. After the fifth criminal is captured, the pay phone will ring on Main Street. Answer it to get your Super Flying power! (check your superhero ID card : each captured crook will be marked with a sticker) (see related answer for solutions)
As you defeat each villain and handcuff them, you return to the prison, then go right to the city again. When you have defeat all 5 of the super villains (everyone but Betty Jetty) the pay phone will ring on Main Street and you will receive your super flying power. Then you can go to the skyscraper Downtown and fly up to chase betty Jetty.