This is a demonstration of how you can draw on top of sprites by hiding and stamping the sprite before drawing. In this case, waves are drawn both behind and in front of the stamped sprite. And a 90% transparent version of the sprite is stamped on top. Look inside to see how it's done.
I made this in response to this question by @ovenn on my profile page: https://scratch.mit.edu/users/papipupepappa/#comments-198393397
