All ships acquired, and fully upgraded.
Spent over 1000000 credits.
Finished all missions with a 3 star rating.
Finished all missions.
Used over a 100 powerups.
Fully upgraded a ship.
Used 5 or more powerups within a single mission.
Shot down over 200 jets.
Destroyed over 400 tanks.
Unlocked the Red Siren ship.
Finished a mission in less then 15 seconds.
Finished a mission without taking any damage.
Bought a machine gun.
Equipped a ship with all types of weapons.
Equipped a special weapon for the first time.
Equipped rockets for the first time.
Finished a mission only using bombs.
Killed an enemy jet with bombs.
Equipped bombs for the first time.
Completed the first level
Unlocked all achievements.
