Click and hold the cat to drag it. Slide the Second, Health, and Damage to set it. Touching the crab to get damage. You can remix it! Or Drag "Health Bar" Sprite to your backpack!
Thanks to griffpatch! https://www.youtube.com/watch?v=dtMy3umcoEI&list=PLy4zsTUHwGJKByTn_qV76oTpEYGczqEb_&index=20