Another version of Rocky, specifically the 'U' (presumably US) release from Venom, offers a different take on the boxing game for GBA. Venom was known for producing various unlicensed games for the system, so this iteration may differ from the other releases in terms of gameplay mechanics, graphics, or overall quality. This likely means there might be alterations in controls, character roster, or even the general game design. Information concerning the game's original development team is generally unknown for these unlicensed releases.

Rocky (U)(Venom)

Rockman Zero 3 (J)(Eurasia)