Press green flag. What it does is it generates 3 randomly located drops of blood (in close proximity) and then does a drippy effect with random drip speed. I have instructions inside if you want to customize the drops. Press space at any time to randomize/restart the effect.
@smee561 Feel free to use this :) technically this is 100% pen. (there' the backdrop and three sprites, which are hidden) How do you like it?