Number 16

"Number 4 and 6, finish the battle in five minutes." 

As the voice of the mysterious expert ended, the expert's robot companions underwent strange transformations. The short, fat man, who seemed to have blended into the darkness, began expanding like a balloon. Every muscle on him had silvery snakes sliding through them and a terrifying lightning lance formed in his hand. Suddenly, the surrounding grass was swaying erratically. 

In one stride, he blocked Lou Cheng's route to retreat. Stretching his back and opening his arms, he readied to throw his lightning spear.

Pa pa pa! The muscles and tendons of the one-eyed man released. His right arm expanded to the size of an artillery barrel making it look disproportionate to his body. 

His pace was slower than expected, and as he approached Lou Cheng, he maintained control of the distance between them. Emulating the firing motion of a rocket launch, he threw out his fist.