Green flag and try whistling.... I swapped out using the Scratch Sensor board with the resistance sensor block and replaced that with the sound sensor block so anyone with a microphone in their computer/tablet could try it... if you have a microphone .... try clapping! or singing....
This project used to use something called the ScratchBoard it used the changes in resistance on port d to set the note, the value of the whirl filter and the value of the mosaic filter to make some nice changes to the looks of a sprite with a full screen costume. the less the resistance the more the visual "knotting" of the image.
