Remember to do these things:

    - scale by 4x, with NO interpolation

    - use a inter-frame delay of 150ms or 200ms

    - retain the original filename where possible, but change the "s" prefix to "sprite_"

    - tag each upload with   {{Sprite GMDebug GIMP}}   so other people know how to create them too, if they want


Example sprites:

    http://spelunky.wikia.com/wiki/Image:Sprite_GiantSpider.gif
    http://spelunky.wikia.com/wiki/Image:Sprite_BatLeft.gif