Unlimited lives
 
 Go outside the castle, near the waterfall. Climb the third tree from
 the waterfall. Do a handstand on top of the tree to get a one-up.
 Then, enter the castle's first floor. Now return outside and climb
 the same tree. Do another handstand for another one-up. Repeat this
 trick to collect an unlimited amount of lives.
 
 Infinite lives (Japanese version)
 
 During the first fight with Bowser, continuously avoid him and
 collect all the coins that appear. Continue to do this until 1000
 coins have been collected. Then, a green "M" will appear next to the
 number of lives remaining. From this point on, when a life is lost,
 the number of lives increases. While gaining lives will actually
 lower the number of lives remaining. The cheat will end if the number
 of lives reaches zero, such as when Yoshi gives Mario 100 lives after
 obtaining 120 stars. This trick cannot be done on the North American
 version as it only allows 999 coins to be collected. Note: Once the
 game is ended you will no longer have infinite lives. 
 
 One-up butterflies
 
 Butterflies may appear on courses 2, 12, and 13. Punch the
 butterflies to turn them into round black bombs that will chase
 Mario. Then, the bombs will explode or turn into one-up mushrooms.
 
 One-ups in third Bowser battle
 
 Walk behind the top left pillar to collect a 1-Up if you lose a life
 during the battle.
 
 Yoshi
 
 Obtain all 120 stars and go outside the castle. Climb inside the
 cannon opening that is now located where the grating was near the
 Fish Pond. Aim to land Mario onto the roof, where he will meet Yoshi.
 Then, he will speak to Mario, award a 100 life bonus and a
 triple-jump move, and quickly leave. 
 
 Alternate Bowser message
 
 Obtain all 120 stars and return to the final fight with Bowser to see
 a different message.
 
 Very big penguin
 
 Obtain all 120 stars and return to Course 4 (Cool, Cool Mountain).
 Before entering, select the Big Penguin Race. Then begin the game and
 jump into the chimney of the house at the beginning of the level. Now
 the penguin will be even larger than before.
 
 Control ending sequence camera
 
 After beating the game, use the Analog-stick on controller two to
 control the camera in the scene featuring Mario and the Princess. The
 camera is also controllable on the Credits screen.
 
  Game Shark Codez: