@ecalnad To see what "ingredients" he used, use the zoom tool in Powdertoy by pressing Z (on your keyboard, in case you didn't know. Not on, like, your Wii nunchuk if you've got one...) then scanning with your cursor over the pixels to see what "ingredients" they are.
Edit: To make the SING explode into PHOTs and NEUTs you need to literally feed it with other "ingredients"... But there is another way...