Here is the full list of all 26 Spaceship Looter achievements.
Buy the most expensive transfer
Kill the fifth boss
Run 100 platforms for cargo
Unlock Scientist of the future
Kill the fourth boss
Unlock Robot Cleaner
Kill the third boss
Activate the 50 monoliths
Unlock Reptile Mutant
Kill the second boss
Blast 100 barrels of acid
Find all the items!
Unlock the Federation Spy
Kill the first boss
Make 10 purchases
Penetrate a spaceship pirates
Save all the NPC
Go training with Brain
Finish first location without damage
Shoot the enemies 100 electric bullets
Kill 100 enemies lamps
Commandos Joker done his job!
Federation Spy done his job!
Reptile Mutant done his job!
Robot Cleaner done his job!
Scientist from the future done his job!