Thanks for your help on this matter! The -plays parameter is valid for FFmpeg, but not for ffplay. Is there any way to use this minimalistic all-round player to loop an animated PNG forever?

ffplay.exe https://upload.wikimedia.org/wikipedia/commons/1/14/Animated_PNG_example_bouncing_beach_ball.png -plays 0

returns:

Failed to set value '0' for option 'plays': Option not found