Pokémon shuffle is listed, as well as all other popular spin-off Pokemon games. They don't have official pages like X&Y or red and blue, but they have a list.
Here is the list:
•Pokémon Stadium (Nintendo 64)
•Pokémon Stadium 2 (Nintendo 64)
•Pokémon Battle Revolution (Wii)
•PokéPark Wii: Pikachu's Adventure (Wii)
•PokéPark 2: Wonders Beyond (Wii)
•Pokémon Colosseum (GameCube)
•Pokémon XD: Gale of Darkness (GameCube)
•Pokémon Mystery Dungeon: Red Rescue Team (Game Boy Advance)
•Pokémon Mystery Dungeon: Blue Rescue Team (DS)
•Pokémon Mystery Dungeon: Explorers of Time (DS)
•Pokémon Mystery Dungeon: Explorers of Darkness (DS)
•Pokémon Mystery Dungeon: Explorers of Sky (DS)
•Pokémon Mystery Dungeon: Gates to Infinity (3DS)
•Pokémon Super Mystery Dungeon (3DS)
•Pokémon Ranger (DS)
•Pokémon Ranger: Shadows of Almia (DS)
•Pokémon Ranger: Guardian Signs (DS)
•Pokémon Rumble (Wii)
•Pokémon Rumble Blast (3DS)
•Pokémon Rumble U (Wii U)
•Pokémon Rumble World (3DS)
Hope this helps!