It calls you out on your obsession with pushing the game to its limit, being so attached to a piece of art that you become toxic towards its world. It makes sure that the genocide can't be an accident, and makes you work really hard to make it happen, AND it convinces you that it's a real universe and begs you, not the character but you, the player, to stop killing, so that you truly feel the brunt of what you've done. The toxic obsession you have with this piece of media becomes a character, Chara. It's your "determination" as the player that brought rise to them. It's an incredibly deep story and more effective at producing guilt than anything I've seen ever.
It calls you out on your obsession with pushing the game to its limit, being so attached to a piece of art that you become toxic towards its world. It makes sure that the genocide can't be an accident, and makes you work really hard to make it happen, AND it convinces you that it's a real universe and begs you, not the character but you, the player, to stop killing, so that you truly feel the brunt of what you've done. The toxic obsession you have with this piece of media becomes a character, Chara. It's your "determination" as the player that brought rise to them. It's an incredibly deep story and more effective at producing guilt than anything I've seen ever.