Mighty No. 9

Both of No. 1's Fine Plays involve knocking him out of his attacks when he's weakened. Keep shooting him until he's not on fire and glowing purple, then listen for two of his audio cues:

1. He'll yell "Here it comes!" and run at you. Dash at him to stop the attack.
2. He'll yell "Crush!" and run at you, then jump and try to crush you. Dash at him when he's in the air to knock him down.

This can be done in 2 fights. I just did got one in 2 separate fights and got the achievement.

Wait til he turns purple and he'll yell, Here it comes and run at you or crush and run at you, then jump and try to crush you. Dash at him by hitting RB while he tries to attack you after saying each of those and you should get a "Fine Play bonus and 3,000 points. Do this for both attacks to unlock this achievement.