(PRO TIP: turn on aim assist in options and set difficulty to easy on the right side of the bar)
Hal, the god of machines, will be your second “target,” located on floor 7. I wish I could give a more thorough description but I had an OP setup at the time, due to insane luck.
Essentially Hal has Three attacks. The first being lasers, telegraphed by lines in the background. They will be in a spider web shape and spend counter-clockwise.
The second attack is that he summons Little robot balls that will shoot lasers in straight lines in a variety of directions: an X, horizontal, or vertical. You can tell which direction by an arrow pointing from the sides of the balls.
While these robot balls are summoned, he will hide in the background and periodically resurface for his third attack. He will fire orbs from his head that will go in all directions.
Any flying pickup makes this boss fight significantly easier, so keep an eye out for devil/angel wings.