Just citing some theory from reddit. The Spanish for turtle is Tortuga (which was a Pirate base during the days). As for the ninja it hints that it will share gear with Ninja (scouting)

I would suggest monster hunter rise and splatoon 3. I found some games are better on the switch with its portability and quick resume feature. Games that has some amount of grinding or 5-10 minutes burst of game play, like the ones I mentioned, works very well.