GHOST 1.0
119 Achievements
EA Play
Survival 4
Survive alarm level 4.
How to unlock the Survival 4 achievement in GHOST 1.0 - Definitive Guide
Before triggering the alarm just save & quit then continue. If you happen to die, before the "connection lost" shows in the screen, pause then exit game (do not choose save & quit). When you choose continue, you'll restart at the same place where you saved&quit, at same alarm level you were before dying and without losing your items/powerups.