Mario and co. are going of of thier first handheld party! But the fun is ruined when Bowser hides the mini-games and Gaddgets (toy-like devices) across Shroom City.
The big M and his friends play mildly fun but challenging mini-games to gain them. They get other stuff for helping the townspeople.
The fun is totally in the regular Mario Party charm which makes you feel that you've been invited to a party with you're favorite Mario characters.