In a less heartwarming and more straight out awesome example, Will in episode 7.

You'll always be together with your Mama!'

'Come on! Let the one of you who wants to eat this bullet Maria chambered for me come forward!' In the anime, that line is cut, and the One-Liner becomes ' Maria, let's go together.

In Umineko: When They Cry, at the end of the second arc, Rosa gives a heart-wrenching last line as she faces down a garden full of Mooks, reaffirming for the audience how much she loves her daughter.

And then there's Masane Amaha, from Witchblade with 'LET'S BLOW SOME SHIT UP!'.

That's how Kagari goes out in Psycho-Pass: 'Man, this bites.' Ouryo Rikako also gets one.

In the official translation, he talks about how good the fires of Hell will be when he sees his siblings there with him.

His last words are ' I hope you get the shits.'

In Fullmetal Alchemist, Greed gets one when he is about to be melted down and reabsorbed by Father.

A version in another language says that she was told by Gendou, 'I've always loved you.' Maybe that's not what was said, but It Makes Sense in Context.

Ritsuko: 'Liar.' We never find out what lie prompts this accusation.

Kaji in Neon Genesis Evangelion: 'You're a little late, aren't you?'.

Skyrim my ancestors are smiling at me