Here is the full list of all 17 KAMUI achievements.
Shoot down 1,000 enemies
KAMUI #0(Modified) Defeated
OUGUMO Defeated
KOKUTAKA Defeated
SOURYUU Defeated
Shoot down 100 enemies
GUARDIAN SOLDIER Defeated
SCORPIO Defeated
NOUSU(NEURAL NEST) Defeated
ZAFFIQUEL Defeated
Score Over 5,000,000
Score Over 10,000,000
Score Over 20,000,000
Mission Complete
Mass Production Model Available
1 Credit Cleared
Shoot down 10,000 enemies