Super Mario 64

Ending sequence camera:
After completing 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.

Change Mario's appearance:
Wait until Mario's head appears on the opening screen. Press A and use the hand that appears to grab and stretch various parts of his face. Press B to make Mario's head smaller. To keep a previously stretched piece in that position, hold R and select another piece to change.

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. The bombs will explode or turn into one-up mushrooms. 

One-up tree:
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. Enter the castle's first floor. Then, return outside and climb the same tree. Do another handstand for another one-up. Repeat the trick as needed.

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.

Thousand coin unlimited lives (Japanese version):
During the first fight with Bowser, avoid him and collect All the coins that appear. After a considerable amount of time, you should be able to collect 1000 coins. At this point, 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. The reverse is Also true - 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. The North American version only Allows 999 coins to be collected.

Very big penguin:
Obtain All 120 stars and return to Course 4 (Cool, Cool Mountain). Before entering, select the Big Penguin Race. Begin game play and jump into the chimney of the house at the beginning of the level. The penguin will be even larger than before.

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. 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.

Alternate triple jump:
Obtain All 120 stars and use the cannon to see Yoshi. Mario will be able to perform a different triple jump after you talk to Yoshi. Instead of doing a flip while both feet are sticking out straight, Mario will do a real flip crouched together with sparkles.

Hint: Flying cap:
Get this get nine stars and defeat the first koopa level. A light will appear from the ceiling in the main area in the castle after the koopa level. Look directly at the light to reach the flying cap level. Fly straight down to the platform and land. Step on the red button.

Hint: Steel cap:
Go to the caves level in the other part of the castle. First, make a left then super jump to the other side and open the door. Turn right and follow the path. Super jump to where the huge boulders are located. Reach the top of where the boulders are dropping from. Go through the door and step on the elevator. When the elevator stops, follow the path to the under ground sea. Find the sea dragon and get on his back. Execute a super butt stomp on his back, then get on his head. Lead him to the part of land that contains the red outlined blocks and jump on them. Then, go through the door and run to the other stream. Try not to fall in the water. Jump from land to land until reaching the green switch. Stomp on the switch to get the steel cap.

Hint: Invisibility cap:
Run through the hall that is flooded and has an unmarked door. Enter the door and find the location where there are two pillars in the water. Super butt slam on both of them. After the water drains, follow the arrows that leads to another room. Go through the door, then find the square hole in the ground. Enter the hole and complete the rest of the level to find the cap.