Thanks for playing and the feedback! Say, did you have any expectations where the feathers would launch from?
Generally, I was aiming a it too high because i thought the feathers would come out from the middle of the book, aligned with the bookmark.
I guess they come out from the center of the sprite, but the top being mostly transparent, it was a bit hard to judge ^^'.
I see. Your logic makes sense. I'll have to tweak this.