diff --git a/firmware/apps/mariotheme.c b/firmware/apps/mariotheme.c
new file mode 100644
index 0000000..8e698fb
--- /dev/null
+++ b/firmware/apps/mariotheme.c
@@ -0,0 +1,159 @@
+#include <stdlib.h>
+#include <pentabug/hal.h>
+#include <pentabug/helper.h>
+#include <pentabug/app.h>
+#include <pentabug/timer.h>
+
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+
+
+static uint16_t osc[3];
+static uint16_t speed[3];
+static uint16_t sample;
+static uint8_t note;
+static uint8_t row;
+
+enum {
+	NOTE_LENGTH = 600,
+	end = 0,
+	xxx = 0,
+
+	g_0, gs0, a_0, as0, b_0,
+	c_1, cs1, d_1, ds1, e_1, f_1, fs1, g_1, gs1, a_1, as1, b_1,
+	c_2, cs2, d_2, ds2, e_2, f_2, fs2, g_2, gs2, a_2, as2, b_2,
+	c_3, cs3, d_3, ds3, e_3, f_3, fs3, g_3, gs3, a_3, as3, b_3,
+	c_4,
+};
+
+const int patterns[][3][48] PROGMEM = {
+	{
+		{e_3,xxx,end,e_3,xxx,end,xxx,xxx,xxx,e_3,xxx,end,xxx,xxx,xxx,c_3,xxx,end,e_3,xxx,end,xxx,xxx,xxx,g_3,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx},
+		{fs2,xxx,end,fs2,xxx,end,xxx,xxx,xxx,fs2,xxx,end,xxx,xxx,xxx,fs2,xxx,end,fs2,xxx,end,xxx,xxx,xxx,b_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,g_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx},
+		{d_1,xxx,end,d_1,xxx,end,xxx,xxx,xxx,d_1,xxx,end,xxx,xxx,xxx,d_1,xxx,end,d_1,xxx,end,xxx,xxx,xxx,g_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,g_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx}
+	},
+	{
+		{c_3,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,g_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,e_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,a_2,xxx,end,xxx,xxx,xxx,b_2,xxx,end,xxx,xxx,xxx,as2,xxx,end,a_2,xxx,end,xxx,xxx,xxx},
+		{e_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,c_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,g_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,c_2,xxx,end,xxx,xxx,xxx,d_2,xxx,end,xxx,xxx,xxx,cs2,xxx,end,c_2,xxx,end,xxx,xxx,xxx},
+		{g_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,e_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,c_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,f_1,xxx,end,xxx,xxx,xxx,g_1,xxx,end,xxx,xxx,xxx,fs1,xxx,end,f_1,xxx,end,xxx,xxx,xxx}
+	},
+	{
+		{g_2,xxx,xxx,end,e_3,xxx,xxx,end,g_3,xxx,xxx,end,a_3,xxx,end,xxx,xxx,xxx,f_3,xxx,end,g_3,xxx,end,xxx,xxx,xxx,e_3,xxx,end,xxx,xxx,xxx,c_3,xxx,end,d_3,xxx,end,b_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx},
+		{c_2,xxx,xxx,end,g_2,xxx,xxx,end,b_2,xxx,xxx,end,c_3,xxx,end,xxx,xxx,xxx,a_2,xxx,end,b_2,xxx,end,xxx,xxx,xxx,a_2,xxx,end,xxx,xxx,xxx,e_2,xxx,end,f_2,xxx,end,d_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx},
+		{e_1,xxx,xxx,end,c_2,xxx,xxx,end,e_2,xxx,xxx,end,f_2,xxx,end,xxx,xxx,xxx,d_2,xxx,end,e_2,xxx,end,xxx,xxx,xxx,c_2,xxx,end,xxx,xxx,xxx,a_1,xxx,end,b_1,xxx,end,g_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx}
+	},
+	{
+
+		{xxx,xxx,xxx,xxx,xxx,xxx,g_3,xxx,end,fs3,xxx,end,f_3,xxx,end,ds3,xxx,end,xxx,xxx,xxx,e_3,xxx,end,xxx,xxx,xxx,gs2,xxx,end,a_2,xxx,end,c_3,xxx,end,xxx,xxx,xxx,a_2,xxx,end,c_3,xxx,end,d_3,xxx,end},
+		{xxx,xxx,xxx,xxx,xxx,xxx,e_3,xxx,end,ds3,xxx,end,d_3,xxx,end,b_2,xxx,end,xxx,xxx,xxx,c_3,xxx,end,xxx,xxx,xxx,e_2,xxx,end,f_2,xxx,end,g_2,xxx,end,xxx,xxx,xxx,c_2,xxx,end,e_2,xxx,end,f_2,xxx,end},
+		{c_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,g_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,c_2,xxx,end,xxx,xxx,xxx,f_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,c_2,xxx,end,c_2,xxx,end,xxx,xxx,xxx,f_1,xxx,end,xxx,xxx,xxx}
+	},
+	{
+		{xxx,xxx,xxx,xxx,xxx,xxx,g_3,xxx,end,fs3,xxx,end,f_3,xxx,end,ds3,xxx,end,xxx,xxx,xxx,e_3,xxx,end,xxx,xxx,xxx,c_4,xxx,end,xxx,xxx,xxx,c_4,xxx,end,c_4,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx},
+		{xxx,xxx,xxx,xxx,xxx,xxx,e_3,xxx,end,ds3,xxx,end,d_3,xxx,end,b_2,xxx,end,xxx,xxx,xxx,c_3,xxx,end,xxx,xxx,xxx,g_3,xxx,end,xxx,xxx,xxx,g_3,xxx,end,g_3,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx},
+		{c_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,e_1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,g_1,xxx,end,c_2,xxx,end,xxx,xxx,xxx,f_3,xxx,end,xxx,xxx,xxx,f_3,xxx,end,f_3,xxx,end,xxx,xxx,xxx,g_1,xxx,end,xxx,xxx,xxx}
+	},
+	{
+		{xxx,xxx,xxx,xxx,xxx,xxx,ds3,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,d_3,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,c_3,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx},
+		{xxx,xxx,xxx,xxx,xxx,xxx,gs2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,f_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,e_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx,xxx},
+		{c_1,xxx,end,xxx,xxx,xxx,gs1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,as1,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,c_2,xxx,end,xxx,xxx,xxx,xxx,xxx,xxx,g_1,xxx,end,g_1,xxx,end,xxx,xxx,xxx,c_1,xxx,end,xxx,xxx,xxx}
+	},
+};
+
+
+
+uint16_t freq[] = {
+	0,
+	412,
+	436,
+	462,
+	489,
+	518,
+	549,
+	582,
+	617,
+	653,
+	692,
+	733,
+	777,
+	823,
+	872,
+	924,
+	979,
+	1037,
+	1099,
+	1164,
+	1233,
+	1306,
+	1384,
+	1466,
+	1554,
+	1646,
+	1744,
+	1848,
+	1957,
+	2074,
+	2197,
+	2328,
+	2466,
+	2613,
+	2768,
+	2933,
+	3107,
+	3292,
+	3488,
+	3695,
+	3915,
+	4148,
+	4394,
+};
+
+
+uint8_t order[] = { //0, 1, 2, 1, 2
+	0,
+	1, 2, 1, 2,
+	3, 4, 3, 5,
+	3, 4, 3, 5,
+};
+
+static uint8_t prev_amp = 0;
+
+static void mix_mario(void) {
+
+	if (++sample >= NOTE_LENGTH) {
+		sample = 0;
+		if (++note >= 48) {
+			note = 0;
+			if (++row >= ARRAY_SIZE(order)) row = 1;
+		}
+	}
+
+
+	uint8_t	p = order[row];
+
+	osc[0] += freq[pgm_read_byte(&patterns[p][0][note])];
+	osc[1] += freq[pgm_read_byte(&patterns[p][1][note])];
+	osc[2] += freq[pgm_read_byte(&patterns[p][2][note])];
+
+	uint8_t amp =	(osc[0] > 0xf000) |
+					(osc[1] > 0xf000) |
+					(osc[2] > 0xf000);
+
+
+	if (amp != prev_amp) {
+		buzzer_inv();
+		prev_amp = amp;
+	}
+
+}
+
+static void init_mario(void) {
+	sample = 0;
+	note = 0;
+	row = 0;
+	start_timer(PRESCALE_8, 100, mix_mario);
+}
+
+static void run_mario(void) {}
+
+REGISTER(run_mario, init_mario, NULL);