Mystery Train Island came out for everyone on October 7, 2011.
it will come out October 7
You can get in Mystery island 7 but first you must fight elite four.
Mystery Science Theater 3000 - 1988 Red Zone Cuba 7-19 was released on: USA: 17 December 1994
The current island (October 7, 2011) is Mystery Train. The next island will be Game Show Island (November - December 2011).
No
island 7.you have to get a special s.s.ticket from somewhere.
======================================================================================================================================== you can not go there it is only for fire red and leaf green
7 million dollars
Beat elite 4 12 times
you go to the 7 is island
Mystery Train Island, the 21st island of Poptropica, was available to paid monthly members on Friday, September 9, 2011. The date for free use was October 7, 2011. Non-members could only play the limited opening (demo) during the Early Access period. (the link to the Creator's blog is below)