Rookie mentions that he is scared of clowns, and there is clown makeup "near some video games".
Head to the Dance Club, located in the Town. Click upstairs and pick up the clown makeup by the arcade machine. Click on it.
Return to the Plaza and click on the Rookie bot. He will deactivate, and the following circuit will come up. Connect the wiring to make an S U shape and it will complete.
You will be able to get the face paint and the robot head but, what's this? Something sinister is stopping us from defeating the Rookie-bot.
Stay tuned later today to find out how to combat this!