Gravity is the weakest of the four fundamental forces, yet when applied to the human body, it is a brutal taskmaster. The patrons in the nightclub could attest to the power of gravity, as they now weighed 2.5 times as much as normal. This included Johnny whose normal weight of 166 lbs. was now somewhere around the 413 lb. mark. While the added weight would be laborious to the fit young man, straining muscles, ligaments and tendons would indeed protest any strenuous activity. The potential for self-injury was clearly present, but given the man’s flexibility, he would have to enact something extreme for that to happen. 

Jackrabbit stretched out his leg, snapping it into a straight kick that launched another distance strike aimed towards the crouching An.  Knowing the Johnny had range on him, and the only way to negate range was to close the distance. An launched himself from his crouched position into the air, affected by zero gravity, soaring up towards Johnny.  As An did so the man was in the process of dropping low as the dance floor buckled and rolled under the earthquake power of Johnny. 

Tucking into a soaring somersault, his feet shooting out, An hoped to catch the man in the face with a literal, flying kick. If the kick managed to hit, An would be ready to follow up, if not he would have to adjust gravity to allow him some leeway in how he would counter the jackrabbit.