Mario Party

Unlock Bumper Ball Maze 1
Travel to the mini-game island and defeat Toad in the slot car derby.

Unlock Bumper Ball Maze 2
Win all fifty mini-games on the mini-game island.

Unklck Bumper Ball Maze 3
Win the first two Bumper Ball Maze mini-games.

Special shop items
Finish the Eternal Star stage. After the ending sequence you will able
to purchase special items in the shops.

Unlock extra songs on the Bowser's Magma Mountain and Eternal Star levels:
Buy the record from the Mushroom shop

Bowser's Magma Mountain stage
Finish the first 6 level and accumulate 1000 coins. Purchase the key
to the Magma Mountain, while playing in those 6 stages.

Eternal Star stage
Accumulate 100 stars in the Magma Mountain stage.
After the special event you can play on the Eternal Star stage.