The Prototypes

The Prototypes are a group of mutant and modified wrestlers enemy of TFR created by Hideo Kojima as an experimental new kind of wrestling, and repurposed as a weapon against TFR and it's wrestlers when Kojima tried to become the sole owner of TFR.

Season 3
When Kojima infiltrated TFR as a secondary writer, he already had his eyes fixated on bringing forth his own ideas into wrestling to revolutionize it and make it a true masterpiece of entertainment. When he acquired TFR, he funded a secret lab where he would experiment on wrestlers, but to keep it secret he used low-drawing wrestlers from WWE. Thus, the initial batch of Neo-Wrestlers, The Prototypes, was born.

Season 4
He created experimental wrestlers in an attempt to create new draws to wrestling, but when the overall project was at 30%, his mistreatment of the TFR cast caused them to riot, and he had to use them mid-development as a last stand to TFR. However, despite the initial victory, he was attacked by surprise by TCR wrestlers when the repairs weren't fully complete and they were defeated.

Season 5
The fate of most of the Prototypes is unknown, but some of the base wrestlers have turned up normal, so it's possible the modifications were somehow undone.