tst.b	demo_mode
		beq.s	.d2
		move.b	button_a,s_button_a	;preserve settings
		move.b	button_b,s_button_b
		move.b	button_c,s_button_c
		move.b	difficulty,s_difficulty
		move.b	#6,button_a	;make sure buttons are set correct
		move.b	#4,button_b	;for demo
		move.b	#5,button_c
		move.b	#1,difficulty	;and difficulty=medium
		