Everyone's writing the same thing so Ill be different (mostly because I didnt like mass effect or half life)
-EUIII: the one time where I was playing the Mamluks (Egypt), made a marriage with the equally large and more powerful Ottomans, 200 years later my leader is first inline to the Ottoman throne and I annex the whole lot of them. I ran around my room for a little bit to help me deal with that awesomeness
-Team Fortress 2: Playing the Scout and running the flag back and forth three times on 2fort by quad jumping up the hole at the entrance of the opposite team fort (they didnt really figure out that I can do that). OR that time I was playing a spy (I am verybad as as spy) and killed 5 people on a payload game by just mashing stab.
-The first fight in Batman Arkham Asylum, holy goddamn Batman!
-The Bioshock intro (I didnt care much for the rest of the game)
-The first Baiten Katos: No lie, the main character betrays you. Like the guy that youre leading. I was in shock, I have never seen that before.
-Tactics Ogre for the GBA: Best game ever. ever. ever. I didnt just like it, I was obsessed with it. When I finally finished it I was so extremely sad that its weird.