Heatseeker (1995) cyborg enhanced fighters

A kickboxer declines an invitation to participate in a kickboxing championship where a company plans to plant cyborg-enhanced fighters. When he declines, the company kidnaps his fiancée forcing his participation.

In 2019, kickboxer Chance O’Brien is forced into the underground world of cyborg kickboxing to save his girlfriend from kidnappers. He finds out the kidnappers are from Sianon Corp., a technologic company that sponsors illegal MMA tournaments.