Summary: My 7 year old and 4 year old son's fought so much to play this game we now have 2 copies. They both LOVE this game. My 4 year old Apollo could play this (and has) for hours (yes bad parents ;) ). They really do love this game I don't know much about the game just that they are both quiet and smiling while playing. If you have mini Ghostbuster fans in the house this is a DS must have!!