Anything centered in Pikachu: Poképark, Hey You Pikachu, Pokémon Channel...
I just dislike Pikachu, so of course I wouldn't like a game starring it.
Pokémon Snap. I don't really care much about it. Nothing else to say about it, really.
Pokémon Puzzle League. You'd think I'd like this since I really like the Panel de Pon games as a whole, and I do like Pokémon Puzzle Chalenge... But the "cheesy pokémon anime everywhere" kind of makes it unbearable for me. It also doesn't seem to play as smoothly as other versions.
Pokémon Trozei! See Pokémon Snap.
Pokémon Pinball. See Pokémon Trozei + I don't like Pinball at all either, at least not enough to consider it worthy of being a full-fledged game, more like a minigame or just something you play for ten minutes.
And I guess the "box" and the ranch games. Though do they even count as games...?
And... that's about it, I guess.
To be fair, the game is at least self-aware of that. With things like the Weavile team being not THAT bad at all and just with a pretty bad reputation. And seems to avert it with other really minor NPCs...Pokemon Mystery Dungeon - They're so guilty of the following: What Measure Is a Non-Cute? - Television Tropes & Idioms
But yeah, that is a thing I disliked of the games, the "scarier" pokémon that got the spotlight were those characterized as bad ones. I kinda wish that at least Cresselia would have been acting on a "well intentioned extremist" deal and was actually in a misunderstanding, rather than being just Darkrai.