this one is easier on city
to get this, you'll need to shoot all enemies without missing the target. you cannot use any special weapon , only normal buster and xceleration dashes
here's a list of shots and enemies:
security robot ---3 shots
flying robot(small) ---2 shots
flyin robot (yellow) --- 3 shots
circular robot. ( looks like a vacuum) --- 3 shots
green robot (shield) --- 1 shot behind
green robot (throw grenades). --- 3 shots
security gate --- 3 shots
for the boss keep firing until he get stuned, just fire if you''re getting a hit confirm.