FCEUX is an all-in-one emulator that is highly favored by speedrunners and rom-hackers. It features robust tools for monitoring memory addresses, making it incredibly easy to manually change your life count value if you enjoy tinkering with game data. 4. John NESS or Nostalgia.NES (Android)
Download a clean, unmodified Super Contra (USA or Japan) NES ROM file (usually in .nes format). Download the specific . super contra 30 lives nes rom