Yoshi's Island

Successfully complete the game in hard mode.

Hold Select and press L(2), B, A, R at the level selection screen. A list of bonus games will appear. If you win the selected game you will get a prize.

After completing the game, an extra level for each world will appear.

Get 1,000 points in a world (100 points on all ten levels including Extra and Secret levels). A star will appear on the game selection screen. Get five stars on that screen to unlock hard mode.

First jump on an enemy and you will be in the air, while you are in the air hold down A and you will get an extra boost.

Pick up a Rollie-Pollie Guy with your tounge. Do not turn him into an egg or spit him out for anyone until you get to the pipe that spits out Shy-Guys. Once there, spit the Rollie-Pollie Guy out into a 1 (square) hole on the right of the pipe. Once placed, jump onto the platform above and to the right of it. Let the Shy-Guys jump out of the pipe and onto the Rollie-Pollie Guy. Points will accumulate and will eventually give you 1-Ups continually. After a few hours, you will have 999 lives.

Get your total points for a world to equal to exactly 777, to get 7 extra lives.

To get special Yoshi eggs with out having to find special boxes, fire a Yoshi egg in an area that will cause the egg to bounce off the walls and back to you. When the egg returns to you, quickly use Yoshis tongue at the egg. If successful, you should have a special Yoshi egg.

To append stars next to the logo at the game's title screen, you must complete every single level in a given world: this includes the extra levels earned by getting 100 points on the other eight levels in the world. One star will appear for each world completed in such a manner, for a total of up to six stars at the title screen.

Pick up the shell at the start of the level and throw it at the row of Koopas. Quit level and repeat for endless lives.