The Hidden Blade Assassin's Creed in Depth

Here is a description of the video.

Hyperblending is closely related to superblending. If you are not already familiar with superblending, please read this article first:
http://www.thehiddenblade.com/superblend-exploit

"Superblending" refers to the unintended ability for Ezio to remain hidden (blended) while performing actions that would ordinarily attract attention. Superblending is an incredibly useful exploit that can be used widely throughout the game. Before discussing superblend, let's establish the concepts of "blending grace period" and "standing/non-standing surfaces."

The Mysterious Death of Marco Barbarigo

The goal of this mission is to steal the Golden Mask from Dante Moro, sneak into Marco's party, sneak onto Marco's guarded ship, poison him, and escape - all without killing anyone other than Marco, and without being seen at all (no yellow bars over the guards). For added challenge, I don't hire anyone, such as courtesans. This video was recorded in one continuous take.

Ghost
The goal is to kill every opponent you that can reach in the "Having a Blast" (Marco Barbarigo) mission without being seen. That means no yellow bars whatsoever. To keep it challenging, I don't use anything other than the hidden blade. This mission is basically the same as the Silent Crash of Carnivale, but on steroids:
http://www.thehiddenblade.com/silent-crash-carnivale

Here are some notes:

Silent Crash of Carnivale
The goal is to kill every opponent you that can reach in the "Having a Blast" (Marco Barbarigo) mission without being detected. There are lots of ways to accomplish this task - this video shows just one way. This video is not optimal, but it demonstrates some of the techniques that can be used.

A few useful things you can do with the airwalk glitch. Thanks to Asaic for the tip about sprinting from viewpoint to viewpoint.

How to airwalk:

Anonymous Blitz Assassination
Despite appearances, the guards and the target aren't very alert on this level. Run straight for him and air assassinate from the rail.