Press space or click on video to run/stop the animation. Click/drag on the slider to control the position. Up/down arrows run/stop the animation too. While running, left/right arrows skip back/ahead. When not running, left/right arrows step through frames. Press r or l (one) to go to the first frame.
Thanks to JellyfishFace for the animation; I just added the slider control. I've been thinking that Scratch animations should have controls like video players do. This was my chance to see how that would work. I like the results, but the coding is messy.
