A: Yes. The code works on all emulators. If the emulator has a "Virtual Keyboard," ensure quick input timing.
No. The tension of Contra comes from the risk of losing your last life and hitting Game Over. 30 lives removes the sting; 99 lives removes the game.
The 30-lives cheat changed the social dynamics of gaming. It turned a solo or duo mission into a collaborative marathon where friends could sit on a couch for an afternoon and actually finish a story.
Super Contra, known as Super C in North America, is legendary for its brutal difficulty. While the original Contra gave players the famous Konami Code for 30 lives, many fans are surprised to find that the same code doesn't work for the sequel. If you are looking to dominate the alien invasion without seeing a "Game Over" screen in five minutes, using a Super Contra 30 lives NES ROM or specific cheat codes is the only way to survive the onslaught.