Here is the full list of all 12 Space Invaders Infinity Gene achievements worth 200 gamerscore.
Beat Normal Mode on Nightmare.
Beat Normal Mode on Insane.
Play Music Mode 10 times.
Beat all 99 stages in Challenge Mode.
Beat Normal Mode without using any continues (on any difficulty level with any number of ships).
Performed 1,000 Nagoya Attacks in a single stage.
Achieved a chain of 1,500.
Beat Normal Mode on Hard.
Beat Normal Mode on Normal.
Beat Normal Mode on Easy.
Acquired a high score of 10,000,000.
Eliminated all UFOs in Stage 0.