function doPop() {
      isOpen = !isOpen;
      popcat.src = isOpen ? mouthOpen : mouthClosed;

      if (isOpen) {
        pops++;
        counter.innerText = "Total Pop: " + pops;
      }
    }

    // Click
    popcat.addEventListener("click", doPop);

    // Teclado (como el original)
    document.addEventListener("keydown", () => {
      popcat.src = mouthOpen;
    });

    document.addEventListener("keyup", () => {
      popcat.src = mouthClosed;
      pops++;
      counter.innerText = "Total Pop: " + pops;
    });
  </script>
</body>
</html>