Get the first key from King Boo's Moon Complex.
Collect all the stars in the Air Fort.
Collect all of the stars in Zomb-Omb Hills.
Collect all of the stars in Evershade Lagoon.
Collect all of the stars in the Lost Glacier.
Collect all of the stars in the Boo Moon Hotel.
Collect all of the stars in the Ice Cavern.
Collect all of the stars in Hot, Hot Plains.
Collect all of the stars in Dusty Cata'Tomb.
Collect all of the stars in the Abandoned Harbor.
Collect all of the stars in the Watery Depths.
Collect all of the stars in Flowerside Patch.
Collect all of the stars in the Clockwork Factory.
Collect all of the stars in Night Sky Heights.
Collect all 13 Secret Stars.
Get the second key from King Boo's Boiler Ruins.
Defeat Bowser in King Boo's Dimension Void.
Defeat Bowser in King Boo's Moon Complex without taking damage.
Defeat Bowser in King Boo's Boiler Ruins without taking damage.
Defeat Bowser in King Bowser's Dimension Void without taking damage.
Win the race against Koopa the Quick.
Defeat King Zomb-Omb Damageless.
Defeat the Big Bookshelf without taking damage.
Defeat Eyerock without taking damage.
Defeat Wiggler without taking damage.
Bring the wrong baby to the mother Penguin
Get all 8 blue coins in Evershade Lagoon in one try.
Activate the Blue Switch without using a Shell or taking damage.
Get to the final fight with Bowser without using the cannon (enter and exit the castle to retry, if needed)
Read every Bill Board family sign (Jill, Bill, Chill [twice], Will, Fill, Drill, and Hill) in one session.
Open all the cannons possible in the game
Press all three Cap Switches.
Collect the star "Starling of the Trees" without touching any trees or taking damage (except the first tree).
In "Night of the Wing Cap", collect all 8 red coins without ever losing the wing cap.
Read the sign at the end of King Boo's Dimension Void.
Get the star "Beware of Piranha Fishes" without using a Metal Cap
Collect all of the stars in Piranha Forest.