What is the answer for go to jail on Poptropica?
Well your actual poptropica character can't go in jail. But on Super Power Island, when you defeat each villain and they will go to jail.
On Early Poptropica, climb up. Or if you have the glow stick from the well in Early Poptropica village, pick up the pig and go left through the tunnel to find the Golden Egg. On Super Power Island, you go back out the way you came in. If you defeat Ratman (see the related question), you automatically transport him to the jail.