Enable the "Pedestrians riot" and "Pedestrians have weapons" codes. Enter the dance club and start the dance challenge. During the dance, a pedestrian may have a rocket launcher and start shooting. More people will come in and watch you dance. If the pedestrians are too close, then you will be inflicted with damage from the rocket launcher. If your damage has passed the point of making you wasted, when the dance is over the message will appear stating that you can dance to a harder track. After the message disappears, C.J. will drop to the floor dead.