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