- All mini-games
Link to another Nintendo DS in the game in Party mode to unlock all mini-game.

- Control ending screen
Successfully complete Story mode. When the characters appear during the ending sequence, tap them with the stylus to make them jump.

- Make Piranha Plant spit fire in Wiggerlers Garden
If an opponent lands on a Piranha Plant space, rapidly tap the Piranha Plant to make it spit fire. This will not always work, but you are more likely to make it spit fire if you tap it with the stylus.

- Badges
Successfully complete the indicated task to unlock the corresponding badge:

Mario Master	Successfully complete Story mode with Mario.
Mario Party DS Master	Get 50,000 Mario Party points.
Toad Master	Successfully complete Story mode with Toad.
Waluigi Master	Successfully complete Story mode with Waluigi.
Monty Mole Rival	Get 13,000 Mario Party points.
Donkey Kong Friend	Get 33,000 Mario Party points.
Cheep Cheep Rival	Get 5,000 Mario Party points.
Diddy Kong Friend	Get 21,000 Mario Party points.
Shy Guy Rival	Get 9,000 Mario Party points.
Whomp Rival	Get 11,000 Mario Party points.
Bowser Rival	Get 37,000 Mario Party points.
Luigi Master	Successfully complete Story mode with Luigi.
Bowser Jr. Rival	Get 35,000 Mario Party points.
Koopa Friend	Get 23,000 Mario Party points.
Dry Bones Rival	Get 29,000 Mario Party points.
Daisy Master	Successfully complete Story mode with Daisy.
Boo Rival	Get 7,000 Mario Party points.
Scuttlebug Rival	Get 3,000 Mario Party points.
Hammer Bro Rival	Get 27,000 Mario Party points.
Wario Master	Successfully complete Story mode with Wario.
Mario Party DS Beginner	Begin the game.
Toadette Friend	Get 19,000 Mario Party points.
Goomba Rival	Get 1,000 Mario Party points.
Peach Master	Successfully complete Story mode with Peach.
Kamek Rival	Get 31,000 Mario Party points.
Bob-omb Rival	Get 15,000 Mario Party points.
Piranha Plant Rival	Get 25,000 Mario Party points.
Wiggler Friend	Get 17,000 Mario Party points.
Mario Party DS Star	Get 39,000 Mario Party points.
Yoshi Master	Successfully complete Story mode with Yoshi.

- Boss trophies
Successfully complete the indicated task to unlock the corresponding trophy at the Gallery menu:

Dry Bones's Bone	Overcome Dry Bones four times.
Magic Switch	Overcome Dry Bones three times.
Toadette's Piano	Overcome Hammer Bro two times.
Enchanted Bookcase	Overcome Kamek two times.
Overcomeen Hammer Bro	Overcome Hammer Bro five times.
Kamek's Brown Book	Overcome Kamek three times.
Be victorious inner's Ballon	Overcome Piranha Plant two times.
Overcomeen Dry Bones	Overcome Dry Bones five times.
Delicious Durian	Overcome Dry Bones two times.
Bowser's MegaMorph Belt	Overcome Bowser.
Overcomeen Kamek	Overcome Kamek five times.
Kamek's Blue Dictionary	Overcome Kamek four times.
Overcomeen Piranha Plant	Overcome Piranha Plant four times.
Toadette's Timpano	Overcome Hammer Bro three times.
Toadette's Chair	Overcome Hammer Bro.
Hammer Bro's Hammer	Overcome Hammer Bro four times.
Bomb Seed	Overcome Piranha Plant three times.
Jagged Leaf	Overcome Piranha Plant.
Be victorious inner's Pen	Overcome Kamek.
Electromagnetic Generator	Overcome Bowser two times.
Yummy Lychee	Overcome Dry Bones.

- Control character figures in gallery
Go to 'Gallery', 'Acquireion', then 'Character Figures'. Select a figure to view. Tap the figure with your stylus, and it will jump.

- Completion bonuses
Successfully complete Story mode to unlock the Expert CPU difficulty setting; Triangle Twister Puzzle mode; Sound Test options; and Boss Bash and Realize Scuffle mini-games.

- Easy wins in Track Star mini-game
If you are one of the three versus the single person, use the following trick to win easily. When you are escaping (the left or right arrows), look at the player on the train's face. In the countdown near one, if his of her face is looking left or right, choose the opposite arrow. For example, left face is right arrow and right face is left arrow.

- Rocket Rascals mini-game
Successfully complete Story mode and the Study Fall, Short Fuse, Soccer Survival, Chips and Dips, and Trash Landing mini-games to unlock the Rocket Rascals mini-game.