Activate the following game modes by performing the corresponding tasks. To revert back to normal, play the mode you activated a second time. Note: These may only work on the Wii U version of the game:
HOW TO UNLOCK
Gameboy Color Mode
Type in ARCADE MACHINE to get an arcade that can be played.
Type in VIDEO GAME to get a gameboy.
Old Timey Mode
Type in TIME MACHINE, and use it to make everything sepia tone, and have a piano bgm.
ACHIEVEMENT - HOW TO UNLOCK Brotherly Love - Help all 40 of Maxwell’s brothers. Bubbles’ Magical Aquatic Adventure - Bring 40 Starites to Lily. Buzzing to the Stars - Bring 50 Starites to Lily. Cars, Trains, and Planes - Get all object Shards in the Vehicle category. Chillin’ with Chilly - Bring 24 Starites to Lily. Fashion Statement - Get all object Shards in the Clothes category. Food Fight - Get all object Shards in the Food category. Fun with Weapons - Get all object Shards in the Weapon category. Helping Hand - Get all the Starites in any level. Jamming Out - Get all object Shards in the Music category. Living Large - Get all object Shards in the Living category. Magical Globe for Rent - Bring 3 Starites to Lily and unlock the world map. Make it Yours - Make a new object using the Object Editor. Maxwell in Disguise - Change your Avatar. Notepad Explorer - Get all 217 object Shards. Patches and his Kite - Bring 8 Starites to Lily. Playing with Gadgets - Get all object Shards in the Tech category. Rex the Dinosaur Hunter - Bring 12 Starites to Lily. Sister Savior - Bring 60 Starites to Lily. Starite Get! - Get all 106 Starites. The Kitchen Sink - Get all object Shards in the Misc category. Tony and the Outlaw - Bring 30 Starites to Lily. Try This Instead - Create an object using the Object Suggestor. Window Shopping - Download a custom object from another player. Yarrr, matey! - Bring 16 Starites to Lily.