Air Rescue

Air Rescue
Developer: SIMS Publishers: Sega (EU), Samsung (KR), Tec Toy (BR) Platform: Sega Master System Released in EU: 1992 Released in KR: 1992 Released in BR: 1992 This game has a hidden sound test. This game has a hidden level select.

Test Mode

To access the game's Test Mode, at the title screen, press Up, Right, Down, Left, Up, Right, Down, Left, I. If done correctly you'll be sent to this screen, which has a sound test, a level select, and a controller test. You can also modify the amount of lives you start with. The "Inertia" option changes the speed and inertia of your helicopter as it flies around the stage.

(Source: SMS Power)