Once, I was playing a friend in one the the DBZ: Budokai Tenkaichi games, we were playing as different versions of Goku. I had him pretty much beat, but we both went for our Ultimate Attacks to finish the fight once and for all. But he got me. He used Instant Transmission Kamehameha (Goku literally teleports right behind you no matter where you are and attacks you). I was certain I had had it at that point. Yet, I someone managed to teleport out of the way. I then hit him with my Spirit Bomb. Even he admitted that it was pretty bad ass. Doubt I could ever do it again if I tried.
I got a couple in MAG.
I was trying to get some kills with my sidearm, so I went with a machine pistol. Seeing an enemy, I went for him and as soon as I did, I saw there were three of them. I killed the first with my pistol, switched to my main gun to kill the second, and killed the third with a knife I think. Never felt so awesome!
Entered another game that was already in progress. Only had half a squad and about eleven minutes (out of twenty) in the match. Undeterred I went to engage the enemy. After a few skirmishes, and a few revived allies, I made my way cautiously into the objective. Killing a few enemies that got in my way, and activated the objective. I still had to defend it, but did so without a problem. Killing every single enemy that dared enter, even if there were multiple foes and even one that someone revived after I killed him. After I killed about 5 enemies that tried to enter and retake the objective, they started chucking grenades in after me. I have no idea how many they threw, but I'd guess it was at least three. This is what got me. Not players more skilled than me, but guys spamming the hell out of grenades. When I checked my stats I had over 120 points, and 11 kills to my one death. This also gave me more points than anyone in my squad. Oh, and I had no backup the entire time. I have no idea what the guys I revived were doing, but they weren't following me. Before I went to try again, I had some clan mates ask if I wanted to join their group and I couldn't refuse that offer.
I could list more, but that seems like enough.