Pokemon Ultra Sun
If you are a fan of Pokemon, check out the latest Pokemon Sword and Shield games and accessories available at GameStop.com.
You can play 3DS games on 3DS and 2DS. Unfortunately if you just have a regular DS it won't work.
If you both own copies of the game and play from a local or online room in, you should be able to.
Go to the internet and search the question and click the first thing that pops up.