Click the animation to download the animation sheet. The gif may not represent the actual frame speed in-game depending on your browser.
Not exactly how I originally envisioned it to be due the output files being drastically different than the preview window for some reason. ¬_¬
But it gets the job done, I think. I do recommend using Normal blending rather than Add along with an opacity value less than 255 for this particular animation.
I would’ve liked to have made this animation with a stylized skull, but finding a non-copyrighted picture of one is apparently quite hard.