Complete the indicated task to unlock the achievement.

Achievement	How to unlock
A Better Ship	Collect 5 power-ups.
Alien Destroyer	Destroy 1000 enemies.
Alien Doom	Destroy 50000 enemies.
Alien Killer	Destroy 100 enemies.
Alien Slayer	Destroy 10000 enemies.
Champion of Fire	Finish Level 05 - Volcano at Master Levels.
Conqueror of the Sands	Finish Level 03 - Ridding Hot at Master Levels.
Defender of the Trees	Finish Level 04 - junglyard at Master Levels.
Desert Soldier	Finish Level 03 - Ridding Hot.
Guardian of the Galaxy	Finish Level 06 - Alien Core at Master Levels.
Hero of the Galaxy	Finish Level 06 - Alien Core.
Jungle Hunter	Finish Level 04 - Junglyard.
Knight of the Cosmos	Finish Level 01 - Star Chase at Master Levels.
Lots of Improvements	Collect 100 power-ups.
Now We Are Talking	Collect 500 power-ups.
Protector of the Purity	Finish Level 02 - Water World at Master Levels.
Space Fighter	Finish Level 01 - Star Chase.
The Way of Victory	Collect 20 power-ups.
Vulcan Bravest	Finish Level 05 - Volcano.
Water Warrior	Finish Level 02 - Water World.