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