Katamari! It's just such a wild and fun experience. Even the sequels.
Nier Automata: It's a game that uses every aspect of the medium. From the story, the music, game play, even the end credits, it feels like they took such care in crafting a memorable experience and didn't let anything they could use to express themselves go to waste.
What Remains of Edith Finch, specifically Lewis' chapter. I think it's an excellent portrayal of how incedious and overwhelming depression can be.
Telltale's the Walking Dead (first one only): I was not prepared for the story. I wish they took the same care in the sequals, but I feel like the quality of the first one just came out of nowhere.
I remember playing Katamari, and it having really unique gameplay. I'll have to check out the other ones you mentioned. They seem pretty cool! Thanks for the suggestions!
Monster Hunter is a great series. Not terribly stoked about the endgame in Rise though. I think my ideal game would be something like Generations Ultimate but with the overall clunk removal that world/rise did.