At the title screen, press and hold Up, Left, A, B & Select and press Start. If done right, a music test with a chibi Ryu will appear. Press Start to exit to the title screen. Now, let the title screen fade to the intro and press Start to go to the title screen again (see title screen twice), press and hold Up, Left, A, B & Select and press Start. If done right, a music test with a chibi Irene will appear. Now for the ultimate music test: press Start to exit to the title screen. Let the title screen fade to the intro, press Start to go to the title screen again, let it fade again and press Start a second time (see title screen three times), now press and hold Up, Left, A, B & Select and press Start. If done right, a music test with channel and volume controls will appear.