In bowsers infrono let the computer fight bowser first because the floor he dies on you start on it makes it easy to win but always have a star even when bowser challnges you don't say yes intill the computer fights him

Hey if you select one of your souvenirs and say(surprise)clearly your souvenirs will do something.

Simple

Play a lot of mini games

Happy Gaming ;)

Hold buttons: Start + B + X

All the "regular" souveneirs and secrets you want to buy cost "500 Points" and the "rare" souveneirs, the two secret games, and other good stuff cost "1000 or more Points."

In the Mini-Game mode, when you unlock the "King of The River" by buying it at the Duty Free Shop and you start playing it, here are the Mileage Points you'll receive in the three difficulties:

-Easy Mode: Between 1400-1750
-Normal Mode: Between 3000-3500
-Hard Mode: 4500-5500

Note: Going to the "King of The River" is the best way to receive tons of points for you to buy buy those Souveneirs and other stuff.

Hold the buttons: Start + B + X

When you win all the levels on single player (including Bowser's place), then face Bowser.You'll get Bowser's place on Party and Delux Cruise.