I was fighting a dragon the other day, and I wonder why you cant climb onto it's back and just start going to town? You wouldn't be able to stay there of course. the dragon would eventually buck you off. Also, they should have added a roll feature. it could have been used with tapping the sprint button in whatever direction. this would have been useful for blocking dragon's shouts and arrows and just projectiles in general. Now befor eyou say anything, I am aware that they tried something like this in Oblivion and it was pretty stupid. But that was like 6 years ago, they would have been able to refine it by now. And how awesome would it be if you could block a dragons shout with your own? Imagine a dragon shooting a ball of flame at you and you let off an unrelenting force, the two meet in the middle and it causes a huge explosion! WOW. And i Know alot of people think that dragons are too easy already anyway, but then they would just have to up their difficulty and add some more attack patterns and behaviors to truely make dragons EPIC.

Not shooting down your idea, but I wasn't sure if you knew this. There is a kill animation that involves you climbing onto the dragons back like you described, although you can't control it though. And also there is a sneak perk that allows you to roll exactly the way you described.

Theres also an animation of the player flying the ontop of the Dragon.

Yeah i know, but you have to be in sneak to roll and you have to have the perk...Also the kill animation I'm aware of still I think it would be cool if you could actually climb onto the dragons back and get a few hits off before he bucks you off.