To receive all helicopters plus a bonus helicopter type in
"I'm the CEO of McDonnell Douglas" then go into the hanger hit catalog then enter 1-9.

During the game press Ctrl-Alt-X to bring up the cheat menu.
Type in the cheats at the cheat menu to activate that code.

Radioactivity- Makes a nuclear bomb go off.

A megaphone in the hand is worth two in the bush-
Allows you to use your megaphone outside the helicopter.

Give me bucks or give me death: xxxxx (xx=Bucks, 0-500000)-
Lets you ask for money from 0-50000. However, the more you ask for,
the more likely you'll get "death": immediate shutdown of game without chance to save.

I love my helicopter- sends you back to your helicopter.

Lights, Camera, Action!- Makes your drive-in movie theaters play movies.

Out for a Sunday drive- Puts the camera behind a car.

There's no place like home-
Sends you back to the hanger but your helicopter stayes where you were.

Warp me to career: xx (xx = city number 0-30)- During a career game only,
let's you warp to career city. city 29 is the last city you can be warped to.

Here are a few SimCopter cheats that are used with the screen (must use this capitalization)

Shields up - Invincibility

superpowermultiply - key activates an afterburner

Gas does grow on trees - you don't use fuel

Been there, done that - gives the points you need to complete the level

The map, please - see map when outside your helicopter

Gort - shows funny movie of aliens talking