Operation Thunderbold

Get a score of at least 50,000 and enter WIGAN NINJA on high score table. F7 - Completes level, but remember: you must rescue at least 1 hostage from both of the enemy bases to finish the game successfully! Also, entering SPECCY MODE on the high-score list brings on twice the amount of enemies. Meanwhile, entering EDOM TAEHC (CHEAT MODE backwards) gives you infinite lives, but not infinite health, so you can still die.