would any of you know how to make my current avatar a short gif with metal sonic kai (the character in the pic) floating up and down like he does in the bad ending of the game Knuckles Chaotix (actually, its from a screenshot of said ending, shrunk down to avatar size here)? i'm not sure if i could while keeping the pic/file size small enough to be used as a avatar here. i think its 10.3kb as is PNG, 4.8kb as jpeg.