These were ripped from a shadow Mugen character, which the character creator manipulated these sprites enough to make it look like an amazing explosion. These are just the standard sprites he used. Try messing with them and it will look like an explosion.
well its not blurry but its unusable.... in order to ues it in a good sprite fight u need to make the background white but try it and it wont go completley white so it might take a while... Tip: save and upload as png or bmp
You'll actually need the black background because the sprites themselves have black in the explosion. (Ripped from a game where it used black background.) Most animation programs have Blending Modes. Set it to Screen and the black background should go away and leave the explosion nice and smooth.
You should be able to get it off there no matter what background it has. Use Photoshop or Fighter Factory to change the Blending Mode to Additive or Screen when ripping. If you're using Paint it will be harder.