NGE2 (PS2) - Tabris Battle - Good Outcome (Kaworu Lives!) [Subtitled] 

[Subtitled! Also revised from previous version so that "Wakaranai" ("I don't understand") isn't skipped.]
In the "battle" against Tabris, it's possible to convince Kaworu Nagisa to suck on his death wish and join Nerv instead. If you're curious as to how it's done, here is one possible way. (Probably not the BEST, since I was a hair's-breadth away from failing.)
If you have absolutely no idea what's going on in this game, let me provide a convoluted explanation. This battle involves the combat-based fight with Eva-02, which isn't too exciting -- she's mainly there to make the primary objective more difficult. The main goal is to raise Kaworu's AT bar to 100 before yours (Shinji's) dips below 15. This is done by navigating a 3-trunked dialogue tree (with 24 different end points). Every choice you make along the way may deduct "AT" points from Shinji and/or add them to Kaworu. As mentioned, Eva-02 complicates things here, since the damage that she does to Eva-01 affects your AT meter (synchronization, and all...), so you really want to put her down ASAP and dodge as many attacks as possible
From the PS2 game "Neon Genesis Evangelion 2". Gameplay, video, editing, translation, and subtitles by me (Reichu).