Battler discovering the Truth in EP5 is definitely up there for me, too. A n d t h e n. . . I k n e w. gave me massive chills, such a powerful moment. Him then waking up and discovering Beato’s corpse cuddling him… Cue yakusoku. Yeah. ;;
But I think Ange’s suicide in EP8 tops even that for me, simply because I’ve never had an emotional reaction that enormous to anything in any media before. I was actually sobbing like a little child throughout the whole thing; I think I kind of shocked myself by my reaction, even though I just couldn’t help myself.
In EP5, Battler’s conversation with the ‘Beato’ he summoned. “Do not jest. That is my daughter.” It just illustrates Battler’s conflict and heartbreak so very well.
Following up on that, in EP7, Sayo presenting herself to Kinzo. Just… Sayo is possibly my favourite character of the series, and everything about this scene utterly destroys me. Curiously, both this scene and the previous one are the only two times when my dear plays.
In EP6, Lambdadelta’s logic error moment. “Hey, are you guys… really real? You’re not just some delusion I’m having of us all chatting happily like this, right?” I found the whole thing incredibly disturbing. Also a massively powerful scene is when Erika goes on her killing spree. Actually a lot of things about Erika when she goes full-on batshit-detective mode probably deserve a mention here, but that would be too many to list, and this is already stupidly long :’)
Also believe EP4’s “HEY. IN YOUR 1986, DID BATTLER ONII-CHAN COME HOME?”, cue miragecoordinator, deserves an honorable mention because again, chills. It’s just such a WHAM moment, the cruelty in Lambda’s face, and you realizing together with Ange that no matter what she does, Battler won’t be returning to her.
There’s probably a ton I’m forgetting and will rediscover with the reread, but as I said, this is already far too long :’)