The rest of the game actually looks pretty good, with some nice pre-rendered backgrounds and such. It's only when you visit the land of the living does the game momentarily become horrifying.
Grim Fandango is now available on PS4. It's got about the same level of violence as the King's Quest series and some of the best humor for the adventure genre. It just happens to be one of my favorite games, so it has that going for it too.