19-09-2006, 02:31 AM
after completing the forest in single player, talk to the principle right away, should should then be able to enter the caves 
on multiplayer, the areas available will be the same as the areas available on single player of the first player, upon startup, and just playing through those will unlock the next one.
on multiplayer, the areas available will be the same as the areas available on single player of the first player, upon startup, and just playing through those will unlock the next one.