Pokémon Scarlet and Violet allow you to explore the Paldea region and complete your quest for treasure. Along the way, you will meet many different Pokémon, including Happiny, which will evolve into Chansey and then Blissey. This may leave you wondering how to evolve Chansey into Blissey in Pokémon Scarlet and Violet.
How to get Blissey in Pokémon Scarlet & Violet
To evolve Chansey into Blissey, you must raise its friendship. Chansey will not evolve by leveling it up like normal but must level up with a high friendship rating. Once you have raised Chansey's friendship high enough, level it up once, and the evolution to Blissey will trigger.
How to raise friendship quickly in Pokémon Scarlet & Violet
Chansey's friendship will increase as you use it, but there are ways to speed this up. The best method to quickly increase friendship is by having picnics. Feed Chansey sandwiches, give it bathes, and play with it repeatedly to increase its friendship and evolve into Blissey. Additionally, some berries can increase friendship, but these will decrease certain stats, so this may not be the best route.
Finally, you can give Chansey the Soothe Bell to hold, as this held item will increase Chansey's friendship. If you are wondering if Chansey's friendship is high enough, head to Cascarrafa and find the Friendship Checker. You can find this NPC standing next to a Marill in the main plaza of Cascarrafa.
For more information on Pokémon Scarlet & Violet, check out How to evolve Riolu into Lucario in Pokémon Scarlet & Violet and How to evolve Combee into Vespiquen in Pokémon Scarlet & Violet on Pro Game Guides.