Impossible!!!! Dou is imposible! Can any of you guys who beet the game..

Actually, if you have the Blue Moon you have an advantage. You can use the wood soul with some woodpowder chips and make a nice little grass panel area. You should use your charge attack when duo uses his little swipe thing on all of your panels (sideways swipe on top and middle rows and then sideways on middle and bottom panels) since he stays still for awhile while finishing this, you can get a nice 160 damage in there.

Then use some invisibilities so that you can hit him without getting hit and ending up with a broken attack. Then you can also use the piledriver paX2 and then use lifesword X4. It's pretty simple to beat him. Trust me, because I am at continue 9. If you have Red Sun (I beat that too, but my own dark soul was a little tougher because my sister had me use roll [those arrows took forever to hit him]) you can use the guts soul and the machine buster so that you're invincible while you attack.

You can use the roll soul to heal yourself while you use your chips like lifesword and piledriver. YOU ABSOLUTELY NEED SOME AIR SHOES IN YOUR NAVICUST. Since duo uses his earth shattering multi hitting hands, you don't want to be blocked in when he decides to use that laser of his. That's pretty much it.

You can use area grabs and unite with metalman.You can use the charge attack in front of Duo.It can do 150 damage.

You can use invis if you want to attack if Duo is attacking. Also you can use woodsoul and use your charge attack.

If you want to use invis while you use a charge attack thats a good idea becouse it can take 2 seconds while firing. So you are wide open for an attack by Duo.

Invis can make the attack go right through you.Thats all. Hope I helped!