Sea world After completing most of the the Sea world, try coaxing the eel out of his cave. He has a star attached to his tail.
First star To get the very first star, enter the doorway on the far left of the castle (marked with a star). Give a hip smash to the post that Chomp is chained to, and when he breaks the fence he will release a star! You can now venture into any level with a "1" on the door.
999 lives When you get 120 stars, go to the right of the castle, into the cannon, and blast onto the roof. You will meet Yoshi up there. He will give you 999 lives and a cool triple jump.
Power restore Whenever you find yourself low on power, look for the nearest large body of water. It will restore your power.
Clock stage On the clock stage, enter at 3, 6, or 9 o'clock for all the gears to stop working.
Bowser You will confront Bowser three times. Run behind him and grab his tail. While you are swinging him around to throw him, switch camera angles so you can see the spike bombs on the side of the arena. One hit on an exploding bombs will do him in, until the final confrontation, in which you must throw Bowser into a bomb three times.
Flying level After you collect ten stars, stand on the sunburst in the Main Hallway and look up. You will be transported to a flying level. Activate the red switch to get the winged hat which lets Mario fly!
Piranah plants The only way to eliminate these plants is to sneak up on them while they're sleeping, then bop them.
