Space Invaders Infinity Gene Cheats - Xbox 360

Achievements
Complete each achievement to receive the allotted gamerscore:

Normal difficulty clear (15) - Beat Normal Mode on Normal.
Music fan (10) - Play Music Mode 10 times.
Easy difficulty clear (10) - Beat Normal Mode on Easy.
Challenge mode clear (20) - Beat all 99 stages in Challenge Mode.
Hard difficulty clear (20) - Beat Normal Mode on Hard.
Insane difficulty clear (20) - Beat Normal Mode on Insane.
Classic UFO hunter (10) - Eliminate all ufos in Stage 0.
High score of 10,000,000 (10) - Acquire a high score of 10,000,000.
1,500 chained (10) - Achieve a chain of 1,500.
1,000 Nagoya attacks (10) - Perform 1,000 Nagoya Attacks in a single stage.
Continue-free clear (25) - Beat Normal Mode without using any continues (on any difficulty level with any number of ships).
Nightmare difficulty clear (40) - Beat Normal Mode on Nightmare.

Unlock Difficulty Levels
Hard Mode - Beat the boss on level 5-6 (Cleavage) in Normal Mode on Normal difficulty.
Insane Mode - Finish all of Bonus Mode 2.
Nightmare Difficulty - Finish Challenge mode stage 99.

Easy Achievements
The achievements for beating the game on different levels are very easy to collect. Once you've made it to level 5-6 (Cleavage) on Normal mode, regardless of the difficulty, you can go right back to that level at any time. You can then just pick your ship, power up at the start of the level, and beat the boss again. Even though you only fight this one battle, it still counts as beating the game for the achievements.