Buy Cheap Aces of the Luftwaffe - Squadron Extended Edition PC Keys & Digital Downloads expanded_game

Summary

Aces of the Luftwaffe - Squadron is an action-packed, vertically scrolling shoot ‘em up.
Dodge bullets, collect massive power ups and wisely use special abilities as you defeat waves of enemies. Upgrade each member of your squadron with their personal skill tree as you level up.
You can take on the Aces with up to 3 friends in an epic 4 player local co-op battle.
Includes the Nebelgeschwader DLC, effectively doubling the size of the original game.