alright, make a map that is blank but walkable
set the main character as a wisp or something, and disable the menu
put 3 events (1 for each character)
make them on key press events.
on each one, make them ask, do you want to play my story?
if yes,
then have them teleport to another map and change the character to that
of the one they are playing
then have them activate a local switch
page two of the events should be if local switch is active, and be totally blank
at the end of each character's story, have the player teleported back to the map where
they select the remaining characters, disable the menu, and change the sprite back to
the wisp or w/e, along with adding +1 to a variable
on the first map, (the selection map) there should be a parallel process that reads how many
characters are done, when they finish say, all 3 chars, the variable would be 3 and they parallel
process would teleport to a cutscene for the beginning of the real game
I hope you could understand at least some of what I tried to get across