Why does saucer crash in Destroy All Humans?

In Destroy All Humans, running out of saucer shield energy is a major frustration. Constant combat drains your defenses, forcing you to retreat and recharge, which breaks the flow of destruction. The Unlimited Saucer Shield project eliminates this weakness entirely. By activating this modifier, your flying saucer gains infinite defensive power. You can hover over cities, blasting buildings and abducting humans without fear of being shot down by military jets or turrets. This ensures uninterrupted gameplay and maximizes your efficiency as Crypto. No more worrying about low health bars during intense firefights. Instead, focus on causing chaos and completing missions with ease. Experience the true power of an invincible alien invader. Dominate the skies without limits and enjoy the game as it was meant to be played, with total freedom and relentless destructive capability at your fingertips.