Stray is a game about discovery. You solve puzzles that usually involve jumping to complete goals as you retrieve various artifacts for townsfolks to move your journey forward (do not call them fetch quests, you are not a dog after all). There are optional quests you can pursue along the journey that add to the story.
The game recommends playing with a controller. Apart from jumping, running and meowing, there are a set of controls for B-12, including a flashlight, inventory and translate. The controls are fairly simple, and I had no issue playing the game with either controller or keyboard on PC.
Whenever you leave the Slums you encounter the Zurks. While they travel in packs, their pursuit is more sheep than wolves. Rather than trying to surround and kill, they often move in a large group that is easier to evade. A simple meow will lure them towards you, but that can be used as an advantage to escape. Zurks jump to attack, and if they land on you, you will need to shake them off before more attack. Get too many on you, and you will use one of those nine lives. Don’t worry though, even if you die nine times, the game keeps going. Yes, this is learned this from experience.