You lean back out of the way of Bob's attack.

You hit Bob's attacking arm with a sweeping fist, deflecting his attack and
hurting him a bit.

You hit Bob in the solar plexus with a quick punch.

You block Bob's attack with one fist, then counter with the other!

You bring your foot up and around, hitting Bob in the head!

You strike Bob in the groin, knocking the wind out of him!

Bob attacks, but you defend by dropping a raised foot on his head!

You turn and hit Bob in the waist with a roundhouse!

You turn away from Bob's attack, hitting him in the head with a powerful
kick!

You jump up and kick Bob in the jaw with a loud crack!

You suddenly turn a bit and lash out at Bob with a side kick to the head!

You turn about, leg lifted and bent at the knee, and hit Bob in the chest
with a kick!

You suddenly leap into the air and twist, delivering a powerful kick that
sends Bob reeling!

You rush forward at Bob, jumping into the air and landing two powerful
spinning kicks upon him!

You rush at Bob and jump in the air, wheeling about and nailing him with a
roundhouse kick to the head!

You rush at Bob and then, at the last moment, jump, executing a perfect
side kick to Bob's throat! Bob coughs up blood!