Here is the full list of all 30 Space Elite Force achievements.
collect super gun power
someone sent a car into space, destroy it!
improve the ship resistance!
Destroy Frigate
collect double score power
get 10x combo!
Kill 50 enemies!
Desttroy Cruiser
Destroy Destroyer
destroy heavy frigate
destroy heavy cruiser
destroy heavy destroyer
destroy battle cruiser
complete the hardcore mode!
reach the maximum level!
collect magnetic power
improve ship shield
improve the life of the ship!
get 20x combo!
1st in rank (infinite mode)
Kill 200 enemies!
Kill 300 enemies!
Complete a mission without suffering damage!
collect double orbs power
collect shield power