If you laugh at gags that are constantly overused just because you love old cartoons, this wouldn't be a bad notch in your belt.
At first you wonder how it could possibly be a 'Mighty Mouse' cartoon because it seems like a classic wolf/sheep battle, but in the end of course heeeee comes in to save the dayyyyyy. It's amazing what you can do with lightning-shooting fingertips and the ability to fly alone.
In summary, this short isn't anything to break your neck to see, but if you like the character this will at least appease you. The real show-stealer is the cute little Ewe that IL' MM is saving... which may be the reason his shorts never went to the next level.