@Ace:
Naruto- So Obito conviniently slips through the rocks and conviniently ends up where Madara has been hiding all this time. OK.
Also, still don't see why 1st hokage's dna is letting him live, really kishi, the uzumaki's were the ones known for their longetivity, not the senju. He still hasn't explained why Madara was suddenly brought back in his prime, and the modifications/senju dna should not make him younger.
The humour was bad. The whole scythe thing doen't make sense, since when did a scythe become a ninja tool ?? Also, why does Madara say that there is no way out, shouldn't he be able to get out the same wayhe came in. Even if its a small gap, it can still be considered a way out. How did Madara end up there in the first place ?? How long has he been there ?? So many questions. I am guessing there will be a lot more flashbacks now, so lets wait and see.
I also want to know how Oblito got his MS, since it can only be gotten by killing the person closest to you, so who did Obito kill??
Although he had a reason for it, Hidan used a scythe as a weapon. And honestly, Real life ninjas used everything under the sun as a weapon. They were serfs, so they used garden tools such as hoes, scythes, ornaments on their home… whatever was available. They weren't restricted to any particular weapon.
I think what Madara was getting at was that they were in a sealed cave and Obito somehow activated Kamui for the first time; remember, he told Kakashi a moment ago that Kamui was born the day of the battle. So he could have used Kamui and not even realized what he was doing, falling through the rock and landing where Madara was with Gedo Mazu.
Also, it has been hinted at before that Obito had some Senju DNA. When Torune poisoned his right arm, it melted like a Zetsu clone, and Obito just ripped it off to avoid it spreading to the left (real) side of his body.
Lastly, Madara stated earlier that he was badly injured after the fight with Hashirama. So that would mean he's been there since shortly after their fight, most likely.