This is based on opinion. Please don't list it on a work's trope example list.
Tear Jerker / Virtua Fighter
Eva making Jacky realize that it was his fault that Sarah was so susceptible to brainwashing, being so over protective of her that he took away all her independence, and then the ensuing fight to bring Sarah back.
The finale of the second season of the anime; a busted Gold Dural grabs Eva by the ankle and pulls her over a cliff. Akira grabs her hand and keeps her from falling. Eva asks why he saved her, and Akira tells her he doesn't know. He can't forgive her for what she's done, but he wants her to live to atone for her sins. Eva finally understands Akira's inner strength and how it makes him invincible. With a smile on her face, Eva tells Akira she can't accept that future, and lets go, falling to her death.