Thank you for checking it out. I wish you could get immediate transparency, I did it "manually" in krita. Manually means using the magic selector tool and just clicking on the background. I went for speed rather than accuracy, so many of the sprites actually have some white pixels on their edges. I figure that it wouldn't be visible anyway, though. I'm gonna make a video explaining how I did it soon, let me know if you want me to send it to you!