Shoot down your first blue blimp
Shoot down 100 black blimps in 1 game
Shoot down 100 fighter jets in 1 game
Shoot down 100 red blimps in 1 game
Shoot down 500 blue blimps in 1 game
Shoot down your first black blimp
Shoot down your first fighter jet
Shoot down your first red blimp
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