Terry beats the Joker at his own mind games. Bruce tells Terry to block Joker out ("Joker's vain and likes to talk. Keep your focus and power on through."), but then Terry realizes something: "I like to talk too." Terry then proceeds to break the Joker by talking.
The fight starts with Joker overpowering Terry and knocking him to the floor.
Joker: You're out of your league, McGinnis, I know every trick the original Batman and Robin knew at their peak.
Terry: Maybe, but you don't know a thing about me.
Joker: You?! What's to know, you're a punk, a rank amateur, a costumed errand boy taking orders from a senile old man. Still, if it's a whooping you're a-wanting!
Terry runs to the door
Joker: That's right, better to run and save yourself, it's about your speed.
Terry actually shuts the door so Joker can't escape and breaks the switch
Terry: Let's dance, bozo.
The Joker and Terry fight, with Terry mostly on the defense and his attacks being blocked
Terry: (To Bruce over the comm) He's tough, any suggestions, boss?
Bruce: Joker's vain and likes to talk, he'll try to distract you, block it out and power on through.
Terry knees Joker in the groin
Joker: What are you doing?!
Terry: Fighting dirty.
Joker: The REAL Batman would never-AUGH!
Terry digs the knee in deeper
Terry: Told you you didn't know me.
Terry knocks the Joker backwards
Terry: Can't say the same about you.
The Joker throws a punch at Terry that misses and he runs into a desk
Joker: Impudent brat. Who do you think you're talking to?
Terry: Not a comedian, I'll tell you that.
Joker: (shoots at Terry) Shut your mouth!
Terry dodges and flies up into the rafters
Terry: The real Batman never talked to you much, did he? That's probably why you were so fixated on him.
Terry uses a Batarang to knock Joker's gun out of his hand
Joker: Don't play psychoanalyst with me, boy!
Terry: Oh, I don't need a degree to figure you out.
Terry uses another Batarang to hit the power switch so the Joker can't see him
Terry: The real reason you kept coming back was you couldn't get a laugh out of the old man.
Joker: I'm not hearing this.
Terry: Get a clue, clowny! (Bruce)'s got no sense of humor! He wouldn't know a good joke if it bit him in the cape. Not that you ever had a good joke.
Joker: Shut up! Shut up!
Terry: I mean, joy buzzers, squirting flowers - lame! Where's the "A" material? Make a face, drop your pants, something!
Joker: Show yourself!
Joker: Stop that!
So you fell in a tank of acid, got your skin bleached, and decided to become a supervillain. What? You couldn't get work as a rodeo clown? (laughs
Joker: Don't you dare laugh at me!
Terry: Why? I thought the Joker always wanted to make Batman laugh!