Easy way to get blue coins:
This is kind of an easy way to get blue coins and it always works what u do is on the isle defino you have to kill blue birds but not green birds they only give u rubbish gold coins so first find a blue bird kill it then a blue coin will drop where ever the bird landed but be quick it fades away. Oh and another thing blue birds are semi hard to find.

Hidden blue coins:
Go to Geleko beach. One blue coin is hidden in the peninsula. You just spray the ground with water there, and a shape will form. Once the shape is done, a blue coin will appear. Another blue coin is hidden in the little red dune bud. Get the turbo fixture by collecting 21 shine sprites. Have the red dune bud chase you. Power up the turbo in front of the dune bud. When it goes off, the dune bud will be up side down. Do a ground pound on it to get a blue coin. You can also do this on other dune buds, but they will only give you a regular coin. Note: you can only do this once to each bud.

Shine sprite:
In island delfino swim to the island with the man on it. There's also a yellow bird, spray water on it. then a shine sprite whill come.

Delfino plaza:
Get 50 coins,and at least 10 shine sprites then go to the crate smashing game and finish at atleast 7:02 to become invunlrable in any stage! (you can still drown though)

Getting shines:
Talk to that guy where you go in the level 2 in the house. Talk to him he give you shine by having 10 blue coins. Then you have a shine keep repeting it with 10 blue coins you must get them.

When u get ur super speed pack get it and go to the police station. You'll see 2 cops. In between them is a door that looks like old western doors. Move back about 50 ground tiles and speed and when u blast head stright for the door. It'll take a couple times because you'll hit the cops eventually. Finally when u get in you'll be in a running speed obstacle. When u finish it you'll get a Sprite!

Get Shine Sprite #120:
Beat Bowser and Jr. in Corona Mountain and save after the credits.

Alternate ending screen:
Successfully complete & save the game. You can pay 10 coins to use a boat near the clock tower where Yoshi is found to return the airport level at the start of the game. Additionally,you can get a shirt covered with shine pictures from the man wearing sunglasses he also give you sunglasses do this for a different ending.

Alternate ending screen:
If you complete the game with 119 Shine Sprites or less you will get an ending screen in which el Piantissimo inspects the paintbrush. However, if you finish it with all 120 Shine Sprites, the ending screen will show all the characters in the game.

Return to the Airport:
Once you've beaten the game (and saved your game),you will be able to go back to the Airport from the very beginning. It'll cost you, though. For the price of 10 coins, a boat close to the clocktower where you find Yoshi will take you to the Airport level -- which is filled with coins and fun stuff to do.

Go to a secret level:
There's a secret pipe on an island and to get there you have to: Go to a boat with yoshi near the shine gate. Go on it and the boat will take you to an island. This is the wrong island. Squirt at the fruit in the tree and then another boat will come, go on it. It will now take you to a platform with bananas on it. Jump on it and eat the bananas. Then another boat will come jump on it This one will take you to an island with a pipe squirt. The stuff on it goes in the pipe and in the pipe there will be a lily pad. Steer it by turning around and squirting