How do I cut out the background on a sprite?

I have a sprite but there is a black background how do i get rid of it?

jdoggie101 You can use the BlackToAlpha effect, i'm pretty sure it's somewhere on the forum.

In the image editor, select the fill tool. Right click the black area/s. That is, assuming it's a pixel style sprite (hard edges). Otherwise, you'll need to do it in Photoshop or similar (Gimp etc)