Here is the full list of all 14 Galaxy Annihilation achievements.
Complete all the achievements.
Buy all the ships available in the shop.
Reach 25.000 score in survival mode.
Destroy all the bosses in campaign mode.
Destroy 5.000 enemies in campaign mode.
Buy all the weapons available in the shop.
Shoot 25.000 bullets in campaign mode.
Destroy 2.000 enemies in campaign mode.
Shoot 15.000 bullets in campaign mode.
Destroy 1.000 enemies in campaign mode.
Shoot 5.000 bullets in campaign mode.
Reach 15.000 score in survival mode.
Reach 10.000 score in survival mode.
Reach 5.000 score in survival mode.