I wonder if Itagaki will include the first Ninja Gaiden in the game so it can be unlocked when you beat the original, like Prince of Persia did.

What do you mean? It's confirmed that the original Ninja Gaidens will be in it, isn't it?

I haven't read anything that said it would be, but in the interview i watched, Itagaki said that he wants the players to decide which Ninja Gaiden we like better, so I'm assuming it'll be added.

Like it's a choice, everyone's going to choose the new one

ohhh, I didn't know that.