This game is such a meme lmao. I'm not 100% certain of the timing down to the milliseconds so please double check that for me. I got 6:07.44 by timing from the frame before the screen goes black at the beginning (when my timer reads 0.11) to the frame when Gorza "X-poses" at the end of the battle (when my timer reads 6:07.55.)

Played on a model 1 US Sega Master System with a US game cartridge and using a 6-button Sega Genesis controller.