In Mass Effect, you fought various Geth, mercenaries, a few Asari commandos, a few Geth husks, an Asari Matriarch, and a crazed rogue Spectre, all being controlled by Sovereign, a Reaper.
That will be like a walk in the damn park compared to what you’ll have to deal with in Mass Effect 2. After watching the below trailer myself, I saw the following:
Collectors, Geth, Husks (multiple forms and power levels), and a particular Geth called LEGION who is unlike any Geth you have ever faced. He speaks. He is also 100% obsessed with you.
I can’t wait to take Grunt and beat the living daylights out of some of these things. I’ll get my chance on January 26.