Riki-Oh: The Story of Ricky / 力王 (1991)

Riki-Oh, a young man who has superhuman strength, is incarcerated in a private prison, where inmates are treated like slaves. He is forced to use his unstoppable form of martial arts to destroy the corrupt officials and their lackeys.

IMDb

Availability:

• Blu-ray from 88 Films
• Blu-ray from Mediumrare
• DVD from Hong Kong Legends
• DVD from Cine-Asia
• DVD from Tokyo Shock
• VHS from Media Blasters

Download available from the Internet Archive.