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