Codebreaker suit
You can introduce the password at any time of the game, but you will not receive the suit until you finish it:
Up, up, down, down, left, right, right, x, or.
Tesla Rifle
The game ends once and keep the game. Load the game again and find key 502, north of the hospital. At the motel level you use it and you will see the end UFO. Save the game and when you play again you will have the rifle.
Different endings
Good final: end the game.Bad End: overcome more than 200 enemies after spending the game once.UFO Final: Use the “Room 502 Key” item on the motel.