Get all trophies
Defend against wave #1.
Defend against wave #2.
Defend against wave #3.
Defend against wave #4.
Defend against wave #5.
Annihilate the looming threat and defend Earth!
Optimize power usage to boost laser output.
Maintain uninterrupted fire for 60 seconds.
Collect all three power-ups.
Prepare for Earth's Defense.
Accept the Mission and save the Earth.
Refuse the mission and leave Earth to its fate.
Exit the game and take a break.
Watch the credits until the end and honor the makers.
Invest Science to improve your ship.
Restart ten times after destruction.
Defeat all waves and start again.
Destroy all Asteroids of any wave.
Destroy 80% of the asteroids in all waves.
Destroy 75% of the asteroids in all waves.
Destroy 70% of the asteroids in all waves.
Destroy 65% of the asteroids in all waves.
Destroy 60% of the asteroids in all waves.
Destroy 50% of the asteroids in all waves.
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