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