In February 1984 Mugabi’s ability to take adversity was tested by James ‘Hard Rock’ Green. Mugabi slowly took control of the fight until it was stopped in the 10th round, with Mugabi declared the winner by technical knockout. The bout between ‘The Beast’ and Frank ‘The Animal’ Fletcher marked a quiet maturity that marked Mugabi’s transformation from being what had been dubbed a ‘banger’ with raw power to a refined tactical boxer. The Beast hurt his prey, gently testing with his jabs and then in the 4th round a couple of roundhouse punches and a haymaker travelling all the way from his waist caught Fletcher asleep—the fight ended with Fletcher’s body between the ropes.