Level 1: Stay Calm and assess the situation.
Level 2: Seal the entrance with steel doors and concrete, but not before grabbing a snack from the emergency cache.
Level 3: Activate the self-sustaining ecosystem to ensure a steady supply of oxygen and water.
Level 4: Tune in to the bunker's emergency radio frequency for vital updates and instructions.
Level 5: Prepare to DEFEND THE BUNKER with whatever means necessary!
Go to Level 5: Defense Protocols Go to Level 6: The Aftermath Go to Level 7: The Bunker's Finest Keenest