Sega Master System / Mark III / Game Gear
Hundreds of hostages have been taken prisoner and are held deep within enemy terniory (pretty topical, eh?) and it's up to you to fly in and rescue them.
The mission of mercy takes place over a series of honzontally scrolling landscapes, and you've got to fly your chopper behind enemy lines, land, pick up the hostages and drop them off safely at home base.
The enemy is wise to your antics though, and there's stiff opposition in the form of gun emplacements and aircraft. But no-one said it was going to be easy.
With excellent graphics and challenging gameplay, Choplifter is one of the best shoot em ups around. Take it for a flight.