NES (Last Updated: 3/2/12)
Super Mario Bros.
Warp Pipes!
There are a couple of hidden warp pipes. Try:
World 1-2,
World 4-2,
World 1-2,
World 4-2,
Play as Luigi!
Select Two Players. The second player will have Luigi!
The Legend of Zelda 2: Adventures of Link
Skip the 1st Quest!
Enter your name as ZELDA to start the game on the 2nd quest.
Ice Climber
High-Jumping Zombie Ice Climber
In a two player game, get both Ice Climbers up to the lowest level of the bonus round (so you are standing on the blue unbreakable bricks, but haven't actually activated the bonus round yet). Wait for a bird to come and kill one Ice Climber, but just as the resulting white ghostly figure reaches the peak of its "jump," have the other Ice Climber land on the higher platform, activating the bonus round. The Ice Climber that should have died now can jump nearly twice as high as it should be able to. This ends at the end of the bonus round, though.
Gyromite
Harder Game B
Play through all of the rounds of Game B and the professor will have become faster, making the game even harder.
Contra
30 Free Lives
Press the buttons:
Up Up Down Down Left Right Left Right B A Start
to unlock 30 lives for free!
~Contributed by Luigitailsdoll45
Up Up Down Down Left Right Left Right B A Start
to unlock 30 lives for free!
~Contributed by Luigitailsdoll45
Punch-Out!!! Featuring Mr. Dream
Difficult Matches
To make boxing even more difficult, press the A and B buttons after a match has concluded. Keep holding the buttons until the next match has begun. At the bell, you character's power level should diminish!
Codes:
Major Circuit 005 737 5423
World Circuit 777 807 3454
Super Macho Man 239 010 7738
Piston Honda 032 730 8442
Don Flamenco 005 373 5423
Mike Tyson 007 373 5963
China 777 807 3454
Another World Circuit 135 792 4680 (A+B+SELECT simultaneously after entering)
Busy Signal 800-422-2602
Credits 106 113 0120 (A+B+SELECT simultaneously after entering)
World Circuit 777 807 3454
Super Macho Man 239 010 7738
Piston Honda 032 730 8442
Don Flamenco 005 373 5423
Mike Tyson 007 373 5963
China 777 807 3454
Another World Circuit 135 792 4680 (A+B+SELECT simultaneously after entering)
Busy Signal 800-422-2602
Credits 106 113 0120 (A+B+SELECT simultaneously after entering)