Ask AI: Any video game codes for Nintendo entertainment system?

While I can't provide specific codes for a particular game, here are a few famous cheat codes and secrets for popular games on the Nintendo Entertainment System (NES): 1. Contra - The Konami Code: At the title screen, press Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start. This code grants you 30 extra lives. 2. Mike Tyson's Punch-Out!! - Direct to Tyson: At the title screen, input the password "007 373 5963" and press Start to skip directly to the fight against Mike Tyson. 3. The Legend of Zelda - Second Quest: On the name entry screen, enter the name "ZELDA" and hit Start. You'll begin the game's more challenging second quest. 4. Metroid - Debug Mode and Ending Password: Enter "NARPASSWORD" as a password, which starts you with full power-ups. If you want to see the best ending, enter "JUSTIN BAILEY" to start at the final level with all power-ups. 5. Mega Man 2 - Difficult Mode: On the title screen, hold the A button and press Start. This will start the game in a more difficult mode. These are just a few examples of the many cheat codes and secrets available on the NES. To find specific codes for your desired game, you can search online for the game title along with "cheat codes" or "secrets."