i luckily had extra points laying around, bought 2 though 5 and enjoyed every second of it. Worth the money? No. But if your a dig fan of the game it might be worth it.
2 of 5 - Lead Animator - Basically gestures, combat, conversation system, facial Animation, and creatures. Shows how the Heavy Mechs are implemented into the game, development of the Geth and how they added emotions to a character with out facial features. There are around 110 facial gestures in Mass Effect 1 and in Mass Effect 2 there is over 800! facial gestures. 12 different species in Mass Effect 2. They redid all of they're combat animation systems, they retouched every combat animation that they had on Mass Effect 1 and captured an additional 500! Plus 6 additional Heavy Weapons. Basically shows how all of that is implemented into the game.