Complete the whole game
Go through the fourth era
Go through the third era
Buy the best aircraft
Accumulate 5000 finances
Pass the second era
Halfway through the game
Destroy 200 cannons
Destroy 200 aircrafts
Destroy 500 tanks
Pass the first era
Destroy 200 buildings
Complete the fourth mission
Start the level anew 5 times
Buy a new aircraft
Upgrade the aircraft to maximum
Blow up the building
Drop the superheavy bomb
Complete the first mission
307214
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