Some good points already brought up. To those I could add one more, there was a tonal inconsistency in Mass Effect 2. Both within the linearity and style of the story.
I honestly felt the game had a far better, atmospheric and dark start. Up until the point I was already on the Normandy and started recruiting; or after Omega, if you go there first, as Mordin and Garrus' acquisition missions, plus the entire setting of Omega, were darker and more realistic than the rest of the game.
Regarding tone, I think BioWare missed the mark when they structured the game with hard-coded Collector missions and somewhat linear recruiting order. I frequently lost motivation (not that I didn't run through it in one week, but curiosity isn't necessarily
motivation) regarding the main plot. I loved the characters, but at some points, I get bogged down in side-missions. As has already been said many times, the Collectors were a fantastic enemy visually and had a great introduction, but after Horizon, they aren't an immediate threat until the very end of the game. On a side-note, on my subsequent runs, I leave most N7 missions for post-suicide mission.
What bothered me more was the far more pronounced shift in the style, or tone, of the setting itself. I feel Mass Effect (especially in the light of the comics) leaned a bit too heavily towards "super heroism" genre than sci-fi, even a space opera. A bit like Star Wars, actually. Jedi/Biotics evolved from interesting, rare, even mystique persons with powerful, but restrained skills to your average super-powered action heroes. Even if biotics didn't have an entire philosophy (or rather the far more effective subtle hint of such) as Jedi, there was some scientific justification of their powers in the original. In gameplay terms they were far more powerful, but story-wise, they were more restrained.
ME2 biotics are so overpowered, story-wise and visually, I've often had immersion destroyed. I just couldn't take it seriously that these technological implants make people fly, throw cars (and space stations around...) and make bubbles that allow them to survive in vacuum. It immediately makes me associate it with fairy tales, and light hearted fantasy* rather than a sci-fi setting. And while to the average Joe technology and the vast unknown of space can often by themselves create a sense of dread and awe, something which makes me think
"magic in space!" doesn't.
As much as I like Samara as a character, for example, her mission did not have even a bit of the creepiness of Legion's, or the Collector ship (and it was a mission with fantastic virtual camera work, art design and music). Jack even less so, everything about her reminded me more of campy 80's movies like
"Running Man" or
"Tank Girl" rather than
"The Empire Strikes Back". And sorry for the cheap comparisons, but English isn't a native language, it's late here and I'm tired and too lazy to express it in more detail.

* before anyone jumps at this - I myself am a fantasy fan and I know it can be a very dark genre too; just not when it's combined with automatic rifles, WMDs, space ships, aliens and such.
Modifié par Burdokva, 17 septembre 2010 - 06:05 .