EDIT: Fable 2 spoiler
So, I was playing Fable 2. I had married Lady Grey, and she was pretty cool. Me and my dog would always visit her occasionally, giving her gifts and "Gifts". Then I rounded up the heroes and we met up on hero hill. Then, out of nowhere, Friggin' Lucien comes towards me, and tells me he just murdered my wife and daughter. THEN, THE MOFO SHOOTS MY DOG!!!
AAAGH! I was really attached to those things! Then, I Realized, I was attached....
What have you been very very very attached to?

The Companion Cube.

the robot from space siege

Roman from GTA IV, no seriously, I am quite aware how odd that is but when I was on my way to his wedding I got a sudden sense of dread that something bad was going to happen. I almost didn't go to the wedding because I was so sure something would happen.

The dog in the Bards tale. Oh, and my ghoul in Bloodlines. Poor gal. Oh, and most every companion in Arcanum, Fallout 1 (and some in 2) and Torment. You know, back when people wrote nice games, with nice characters, that weren't all about the cool factor.

Onmi:
Captain Daitetsu's Death scene in SRW OG2, where he does not relinquish command even when mortally wounded, and uses the Wave Motion Cannon with compensators disabled to enable him to retreat. his Death and Funeral made it all the more sweeter when my new ship the Kurogane rammed a FUCKING DRILL into the Bow of the Shirogane which had shot down the Hagane and killed Daitetsu.

That sounded really epic. But I'm not sure what you're talking about.

Playing GTA, I'll get attached to certain cars or, more likely, bikes. If they blow up, I'll reload a savegame just so I can keep it.

That's about it though. Screw people, they always seem to annoy me one way or another.

I've been wondering about this one and usually it boils down to a "wow, they really killed him/her? Wasn't expecting that." Or "*Grin".

I think the one that surprised me the most was Nei in Phantasy Star 2.
After her the best was a very recent one:

Silver:
The ghoul's a good pick.

Aside:
If I'd play Fable 2 killing that dog would be first on my list, where do I get my mut put down? To hell with the possible treasure I wouldn't get, I don't need no stinking tongue-wagger chasing my coat-tails.

My beautiful Thanatos mech when it was ripped apart :(

But I replaced it with a very expensive Fafnir in my depression, so all was good.

Dead Crew Member number 507 on the USG Ishimura in Dead Space.

Oh how beautiful your maggot infested torso was...

I got attached to my sis in Fable 2 after the perfect world.

Sennz0r:
Dead Crew Member number 507 on the USG Ishimura in Dead Space.

Oh how beautiful your maggot infested torso was...

I got attached to my sis in Fable 2 after the perfect world.

aach I hated that part.
I wanted to hurry up and kill Lucien.
Sick bastard killed mah family.

Lars Ulmat in guitar hero 3. I played the entire game with him, and when I found out they made him skinny in gh4, I almost cried.

Kate in GTA IV. I was cynically trying to sleep with to piss off Packie, ended up actually liking the character.

Then (SPOILER) I went and choose the honourable ending to the game and WHAM.

---

The crew of the Atlantis in Unreal 2. Then BAM, shot out of the sky my traitorous dick of a general.

Not me but I have a friend who once said about the half life 2 episodes:
"If they do anything to alyx, or like, kill anynone close to her, I-" then was lost for words.

*cough episode 2 cough*. That was awkward...

hehehe, the same thing happened to me DART, but it was a lot more funny, because I married a dude, and he said He shot my husband. It took me a while to remember that I was in a homosexual relationship with the town man-whore, but I laughed, then was horrible disappointed in the ending.

Vortigar:

Aside:
If I'd play Fable 2 killing that dog would be first on my list, where do I get my mut put down? To hell with the possible treasure I wouldn't get, I don't need no stinking tongue-wagger chasing my coat-tails.

The dog in Fable's awesome, to the point that most people I know who didn't pick the Needs of the Few ending (the one of the three that brings it back), feel like the soul of the game has drained out of it.

Attachment... attachment... Does losing the Uber gravity gun from HL2 count as a big loss?

Well, I got really attached to Agro in SotC. When he fell down that cliff, I was like "Oh you assholes did NOT just drop Agro off a cliff!" And when he showed back up at the end with a limp, I was like "Oh good, I didn't want to have to kill these developers." ALthough really, I felt a bit of an attachment to all the Colossi by the end.

I was attached to Luis Sera from Resident Evil 4, I thought that he was cool and I was pissed off I couldn't play as him or play him during those parts of the game where he wasn't around. Then he had to die in one of the worst ways.

Agro. Shadow of The Collusus. I loved that fella. I nearly cried. >.<

Then I was happy again at the ending 8D

And Raziel. Throughout the Soul Reaver series.

I got attached to the dog in Fable 2.

I wasn't attached to Alyx in Half-Life 2, episode 2 had a happy moment near the beginning for me.

the first time my starter fainted in Pkemon Silver, I was shocked
(I managed to get to the second gym with out him dying, so I didn't think we would untill the final boss or somthing)

Jursa:
Attachment... attachment... Does losing the Uber gravity gun from HL2 count as a big loss?

There is no gravity gun.

There is only The Claw.

They... they took my crowbar...
It was... my.. crowbar...

Dogmeat in Fallout 1, he was such a brave fighter...

Darth Marsden:
Playing GTA, I'll get attached to certain cars or, more likely, bikes. If they blow up, I'll reload a savegame just so I can keep it.

I do that too. In GTA4, when Bernie get's you that sports car from Bryce Dawkins, I drove carefully for the first time ever so I could get it to my safe house intact.

It would've been funnier if he kicked your dog Am I the only one that was happy to get rid of that stupid companion cube? I really hope not.

i remember once in san andreas that i managed to find this reeeally sweet car, and after i painted it and stuff, some idiot ram's into my car on a highway, i end up flying down a rocky hill and right infront of a train going uber fast and i DIE.

looked cool but i really loved that car...*sniff*