Walkthrough Guide...

Complete the indicated task to unlock the achievement.

Achievement	How to unlock
50 STARS	Defeat at least 50 enemies in the Star Challenge mode.
99 STARS	Defeat at least 99 enemies in the Star Challenge mode.
ATTRACTIVE LEADER	Unlock all 6 commanders.
BATTLE FLEET	Unlock all ships.
COLLECTOR	Install all upgrades.
DISCOVERER	Unlock the extra level in mission 1, 2, 3 and 4.
FINAL CHALLENGER	Unlock mission 5.
FIREFIGHTER	Finish mission 4.6 without burning up any cube.
FLASHING TROPHY	Defeat the Raptor in mission 1.4 without getting hit by it.
HERO OF THE STARS	Finish ALL missions with an "A".
KING OF THE HOLES	Finish mission 4.3 without getting caught by a black hole.
SAVIOUR OF THE SUN	Finish mission 4.8.
SNIPER'S NIGHTMARE	Find every single one of Sniper's hideouts in mission 3.5 at first try.
SPEED OF LIGHT	Finish mission 1.8 with an advantage of at least 15 fields.
WRATH OF TILA	Finish mission 3.8 without getting hit by Tilas Star Crawler.