Lose all of your player lives!
Shoot down 10000 aircraft.
Reach Squadron Level 30
Shoot down 700 aircraft with an active ability
Accomplish 20 Extra Missions
Survive a level without losing any wingman
Discover and collect a hidden ugrade coin
Destroy 50 ground units
Defeat 5 different Aces of the Luftwaffe
Defeat 20 different enemy aircraft types
Finish Chapter 4 of the Allied Campaign
Finish the Allied Campaign
Unlock 5 new aircraft models for your pool
Burn down 1500 aircraft with the flamethrower power up
Destroy 200 aircraft with any laser power up
Destroy 35 enemies within 1 second
Destroy 125 aircraft by crashing into them
Repair 30000 hitpoints of your wingman aircraft
Finish all levels of the Allied campaign on hard difficulty
Accomplish all extra missions of the Allied campaign at least once
Upgrade all abilities of the Allied squadron
Finish level 5-4 of the Allied campaign without any enemy surviving
Finish level 3-1 of the Allied campaign without causing any alert
Finish level 1-4 of the Allied campaign without receiving any damage
Defeat all boss enemies on extreme difficulty!
Defeat a Crow Commander without allowing him to heal!
Finish all levels of the Axis campaign!
Defeat as many enemies as possible with Dark Holes!
Defeat as many Crow soldiers as possible!
Collect fears while Siegfried is hallucinating!