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HTML

              
                
<svg xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" clip-rule="evenodd" viewBox="0 0 900 800">

  <path id="red-piece" fill="#00f900" d="M78.55 242.731s-9.834.422-9.834 0c0-7.367.4-14.648 1.178-21.82 10.877-100.29 95.807-179.447 198.822-179.447 105.418 0 191.896 82.891 199.463 186.495.356 4.88.537 9.806.537 14.772 0 .422-9.262 0-9.262 0h-9.421c-18.694-1.983-37.509-3.533-57.756 0-5.805 1.374-11.708.936-17.639 0-18.651-2.448-38.619-2.648-60.255 0-15.888.868-31.546 2.126-49.202 0-3.593-2.985-7.809-2.893-12.592 0-23.07.955-49.605.2-75.769 0-13.126-1.799-26.317-1.301-39.53 0-20.188 1.603-38.467.707-58.74 0z"/>
  
  <path id="red-piece-melted" class="hide" fill="#00f900" d="M79.009 284.77c-6.662-10.397-10.293-41.617-10.293-42.039 0-110.383 89.617-201.267 200-201.267s200 90.884 200 201.267c0 .422-5.448 21.018-5.448 21.018-16.077 31.48-29.063 23.793-37.048-21.759-1.495-8.526-31.763-13.206-33.943.741-5.57 35.639-9.347 51.627-13.92 55.472-9.054 7.614-12.695-9.069-19.949-48.292-3.933-21.263-38.486-27.497-44.025-7.18-18.263 66.99-29.376 61.853-47.042 5.081-5.671-18.226-29.018-14.754-36.835-5.822-27.786 31.752-39.714 47.668-61.543 24.7-10.847-11.413-35.693-42.937-44.596-24.7 0 0-18.304 84.997-45.358 42.78z"/>
</svg>
              
            
!

CSS

              
                body{
  background-color:grey;
}
.hide {
  visibility:hidden;
}
              
            
!

JS

              
                gsap.registerPlugin(MorphSVGPlugin);

gsap.to("#red-piece", {morphSVG: {shape: "#red-piece-melted"}, duration:10 , repeat:3, yoyo:true, delay:2});
              
            
!
999px

Console