Here is the full list of all 30 Unstoppable Gorg achievements.
Complete all story chapters on Hard difficulty
Get hero medals from all story chapters on Hard difficulty
Complete all story chapters on Unstoppable difficulty
Get hero medals from all story chapters on Unstoppable difficulty
Complete all challenge chapters
Complete all challenge chapters on Hard difficulty
Complete all challenge chapters on Unstoppable difficulty
Check the credits
Complete the last level.
Kill 50 enemies with beam link rays
Spend more than $15,000 in one level.
Reach wave 50 in Arcade mode
Reach wave 25 in Arcade mode
Reach wave 3 in Arcade mode
Deploy the Black Hole for the first time.
Achieve a total score of 10 000 000 or more
Meet the Radiant Beem.
Completed story chapter 8 on normal difficulty or harder without building a repair station
Get 8 upgrade tokens.
Defeat a mothership.
Defeat 1000 aliens.
Complete any level on unstoppable difficulty.
Meet Sereia.
Achieve hero medals from 5 different story chapters
Shoot 10 asteroids
Achieve hero medal in story chapter 3 on normal difficulty or harder without building a single Blast Cannon
Finish a level on normal difficulty with 3 x the amount of money needed for the investor medal
Complete a level using only one satellite type.
Get all the performance medals in one level in a single try.
Complete the first level.