The main shield constantly rotates around the spacecraft to secure it. The reason for the shield's conversion to and subsequent damage to the spacecraft. You can connect to the screen to move the main shield. In case the movement towards the meteor is extremely fast, connect and hold the screen to accelerate the shield. You will have extra shields throughout the game. You will lose your secondary shields when the meteors hit them and your primary shields will be unprotected. So you don't get stressed as you will get extra shields with each new level passed. Keep in mind! Every time you connect with the screen, the shield will go the other way.