Pause game play, then hold LT and quickly press X, Y, Y, X. Then hold RT and quickly press Y, X, X, Y. Repeat the code to disable it.
More weapon damage:
Pause game play, then hold LT and quickly press LB, LB, RB. Then hold RT and quickly press RB, RB, LB. Repeat the code to disable it.
All missions and planes:
Hold LT + RT and quickly press X, LB, RB, Y, Y, RB, LB, X at the main menu.
|Unlockable ||How to Unlock|
|Ace Killer||Defeat all other Aces.|
|Ace of Aces||Achieve the highest score in all campaign missions.|
|Collector||Unlock and collecte all planes.|
|Colonel||Get an overall rank in Campaign mode to Colonel.|
|Hero||Achieve combat excellence and earn all medals.|
|Survivor||Outlive your enemies in Arcade Mode.|
Thanks to Revolution Reader Deviru, RISUN!