Originally released in 2005 for the Nintendo DS, Nintendogs remains one of the most highly-regarded virtual pet simulations ever created . It was a "killer app" that demonstrated the unique hardware capabilities of the DS, specifically the touch screen and microphone . Core Gameplay and Features
The game centers on the daily care of a virtual puppy, utilizing a real-time clock to simulate needs like hunger and thirst . Nintendogs Review - Nintendo World Report