@Rilla - You're not my real dad!

I can't really decide what would be the most memorable gaming moment I've had. I mean, there was this one time I was playing Tenchu with a friend, and we agreed to not attack eachother before killing all the guards, but I accidentally killed him by pulling off an explosive arrow shot at an impossible angle, hitting him across the stage by accident; all because I was showing another friend, who was watching, what to press to shoot em. 

I can, however, share my most frustrating gaming moment so far; I played through the entirety of Mass effect 1. 2. and 3. Along the way, I decided to have all the supporting characters die off, and Shepard became increasingly depressed and isolated. By the time he reached the third game, his hair was gray, and he was unable to sustain working relationships with anyone, expecting them to die at any moment. 

SpoileralertIguess?
When faced with the ultimate choice, the climax of the entire series, upon which he wanted to go for synergy, because then no one would have to die again; I was locked out from any other choice than the DESTROY EM ALL! BECAUSE MY ARMY WAS TOO SMALL! "Hey Shepard, you don't have big enough military force, so you have no choice but to defeat your enemy in battle. Because fuck logic." - Oh the.. The disappointment! Moment ruined.