From the US TurboGrafx-16 edition's manual
"Slug It Out With Five of The Greatest Heavyweights Ever!
The crowd goes crazy as you, the brash young challenger, take on the world's greats - Ali, Foreman, Frazier, Holmes and Norton - in the greatest ring action ever! Be them, with their actual physical traits and fighting styles. Battle them in one dream match after another. Use skill and strategy to land vicious jabs, punishing hooks, body shots and uppercuts. Block, clinch and showboat too! The sound's so intense, you'll feel every punch. And facial close-ups show the damage to prove it!
'Ladies and gentlemen!' That's how the action starts. With Champions Forever, it never ends!"