Well, aside from either loving or hating specific games, there are those that bring out other more complex emotions.

To start, there have been games that bring out uncontrolable excitement/celebration, that feeling of having to shout out "YEEEESSSSSSS!!!!" at some point, usually while jumping up to your feet with your hands in the air . A few examples of games that have achieved that:
Final Fantasy VII - Playstation (So many times, the whole opening section... making peace with the Turks, if you did the right subquest....)
Unreal Tournament - PC (winning a game of Insta-gib, Last Man Standing against the computer (and acouple of friends) and the hardest level!)
Eve Online - PC (taking down a HUGE enemy for a massive bounty!)

Gut wrenching despair, the feeling like your whole world has crumbled:
Eve Online - PC (losing you hard earned and newly aquired Cruiser on it's first flight out!!)

Real sadness, feeling a real loss about something:
Final Fantasy VII - Playstation (When Aeris dies at Sephirophs hands to name the most significant occasion)
Max Payne 2 - PC (more so than the first game, felt some real loss when Max finds his woman dead)

Fright - not quite feeling fear, but moments of real fright:
Resident Evil - Playstation (When those damned dogs jump through the window near the start!)


Not a complete list, but just some examples.

yeah, I remember the death of Optimus (many times if I recall... his death in the comics was different from his death in the cartoons...). I also remember how cool it was when he finally came back in his new super mode! A Powermaster in the comics I think... can't remember how in the cartoon, though I remember some astronauts saving him before his ship a supernova blew up his ship...

Got a new one

Guilt:
Black and White - PC (after beating my creature to make him evil... the sad look on his face...)

Wow.. what a cool topic to discuss. Ok heres my list:

LOVED My first freefall in GTA San Andreas. Ever since the opening credits for the DMA logo getting run over for the very first GTA, I fell in love with the games. Never did I imagine being able to do everything that you can do in San Andreas, ill still get that warm fuzzy feeling when I run over a policeman to start the chase.

HATED Silent Hill 1 and 2. Not because they were bad games, but rather the fact that they scare the sh*t out of me, even still to this day. That crackly radio gives me the heeby jeebys, and I dont like being scared. (ok so maybes I dont haaate the games, as I dont really buy games that I wouldnt like to play anyways).