Here are some secrets of Mario Party 6.
Mic Mode
To unlock Fire Run for the Star Sprint, you must buy it from the star bank for 50 stars.
Party Mode
To be able to play in Clockwork Tower, you must buy it for 100 stars.
Here's a little secret. Some minigames are based on the board you're playing on.
Example: The Snowboard minigame is most likely to appear in Snowflake Lake.
Other Secrets
When youplay Mic, Solo, or Party mode, their seems to be a blank person on Character Select. Fortunately for you, you can buy the person. The Character is Toadette, Toad's sister or girlfriend, all I know is they know each other. Save up 30 stars to buy Toadette, a girl version of Toad who is addicted to Sluggish 'Shroom Capsules.
You can buy Seer Terror, a surprise from Bowser, for 50 stars.
Miracle Pages cost the following.
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Miracle Page 2, 3, 4 ,5 ,6 cost 10 stars. 7, 8, 9 , 10,and 11 cost 20 stars. 13, 14, 15, 16 and 17 cost 30 stars. 18, 19, 20, 21 and 22 cost 40 Stars, and 23, 24, 25, 26 and 27 cost 50 stars.
Here are all the effects of Mushrooms in the Game.
Mushroom~ Allows you to hit the dice 2 times.
Golden Mushroom~ Allows you to hit the dice 3 times.
Sluggish 'Shroom~ Slows down the dice so you can hit a specific number.
Metal Mushroom~ Turns you to metal and effects of opponents traps don't affect you.