Tali is probably one of the most mysterious characters to be included in Mass Effect, and she continues to fight alongside Shepherd in Mass Effect 2... although the circumstances appear to be significantly different this time around. It looks like the sequel will reveal a little more background on her and her people, the Quarians.

Continue after the jump to watch a developer narrated gameplay video showcasing the Adept, one of six classes that will be included in the game. The Adept makes heavy use of biotic powers to lock down or shove enemies around. In Mass Effect 2, biotic powers can be used in combination with each other for devastating effects. The game is expected to release in the early half of 2010.

Download HD Mass Effect 2 'Tali' Trailer (59 MB)
Download HD Mass Effect 2 'Adept' Class Video (85 MB)
Check out all Mass Effect 2 downloads