Posted by Necrocatharsis on May 25th

Grandmaster Galaxy
Collect 240 Stars (120 Gold + 120 Green) to unlock the Grandmaster Galaxy in World S. This 2D level will test your Yoshi tongue-slinging skills. It has a Comet Medal and a single Star to collect, pushing your star count to a whopping 241 Stars!
World S
Beat World 6 and you’ll view the game’s ending … but it’s not over yet! You’ll unlock an entire new world, World S, as well.
Co-Op Sound Effects
In co-op mode, player 2 can press any button to make wacky sound effects! UP, DOWN, LEFT, AND RIGHT will make sound effects on the 1st player’s Wii-Mote while -, +, 1, and 2 will make sound effects on the 2nd player’s.
Luigi
Get 30 Stars to unlock Luigi for play on certain levels. You can talk to Luigi at the start of a level to control him. Beat the level and you’ll unlock a time trial “ghost.”
If you beat the game, a door will open on Spaceship Mario’s forehead, right under the main platform. Enter this door to transform into Luigi and play any level as the clumsier bro.
Staff Ghosts
Beat a level using Luigi to unlock a “ghost” recorded by the game’s developers. You can try and beat this ghost as it makes its way through the level at mach speed!
Green Stars
Beat the game after you get the 120 Stars and you’ll unlock 120 more Green Stars to collect! Green Stars are stars located at tough-to-reach locations in the previous galaxies. They have NOTHING to do with Luigi.
1-Up Mushrooms on Spaceship Mario
You can collect several 1-Up Mushrooms on Spaceship Mario. As you collect stars, the following 1-Up options will appear on Spaceship Mario.
- Grab Yoshi off of the “nose” and use the star pegs to swing up to a hidden island with 10 fruit. Eat them all for a 1-Up.
- Grab a Cloud Flower and make platforms to reach a 1-Up on a cloud high above.
- Spin into the random item block for a chance at a 1-Up.
- Near Mario’s left ear (your right) is a warp pipe that takes you to a 1-Up minigame. Feed the Luma to spin a number of random item blocks for a chance to win 1-Ups.
Super Ground Pound
Jump, shake the Wii-Remote to spin and QUICKLY press Z to perform a super ground pound. This move will allow you to hone-in on enemies below you; a heat-seeking butt-stomp, if you will.