Happy Christmas 2012!!!
Here are 2 saves for the Duel modes in Golden Axe 2 and Golden Axe 3
Golden Axe 2 keep hammering the A button then unpause the game to kill the 2 knights
Golden Axe 3 just load the save up and the achievement will unlock a couple seconds later
I'm hoping to have a save for True Ending on Golden Axe 3 soon, i've asked around for someone to look into a trainer but no luck so far so hopefully someone will create one soon or i will try to force myself to try and finish the game again without dying 3 times.....