You cannot, however, there are special CO-OP maps specialized for it by the map creator, and only there can you be a Ghost. actually you can make a ghost in a custom map just do his character number 12 or you can use the advanced level editor
There are 12 red game pieces in a checkers game.
Still Game ended on 2007-12-31.
It was made in 2005 as a non-online game, and was released in 2006. As of this writing (12/5/2017), the game is about 11 to 12 years old, which is pretty long, and the game has changed too.
Get the Message - game show - ended on 1964-12-25.
There are several flashgame-sites that have this game available. Just google it up.
Ghost Story island is the 23rd island in Poptropica (January 12, 2012) and was preceded by Game Show island.
Motel San Fernando - 2010 was released on: USA: 12 November 2010 (Valley Film Festival)
My Ghost Story - 2010 My Ghost Story 12 2-4 was released on: USA: April 2011
The Ghost Squad ended in 2005-12.
Ghost was created on 2010-12-23.
6/12/1961
The Ghost War was created on 2008-02-12.
The Ghost Walks was created on 1934-12-01.
The Ghost Ship was created on 1943-12-24.
Seeding of a Ghost was created on 1983-12-29.
Ghost Wars was created on 2004-12-28.