Copying and pasting is so nice and easy, huh? :3
You're right: this flash sucks. However, that's not caused by a lack of available sprites for you to use, but rather due to a lack of creativity on your part.
It requires absolutely zero imagination and little skill to take sprites someone else ripped, make a slideshow of them and set it to music. If you’d taken the effort to animate a little story with these sprites, or just synched their movements to the song as a music video or something, this might have been interesting. As this flash is, it just seems like some practice piece with no entertainment value.