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