on the tails of Scooby Doo and Shaggy who are just trying to make it out on a river boat alive. Help Shaggy and Scooby Doo through the sewers while avoiding obsticals to try and escape the wrath of the Ghost Of Christmas Future.Scooby Doo The Last ActScooby Doo The Last Act The Ghost Of Christmas Future is hot on the tails of Scooby Doo and Shaggy who are just trying to make it out on a river boat alive. Help Shaggy and Scooby Doo through the sewers while avoiding obsticals to try and escape the wrath of the Ghost Of Christmas Future.Scooby Doo The Last Act