diff --git a/firmware/apps/buggy.c b/firmware/apps/buggy.c
index d4edfcd..5a939df 100644
--- a/firmware/apps/buggy.c
+++ b/firmware/apps/buggy.c
@@ -5,6 +5,10 @@
 #include <pentabug/photons.h>
 #include <pentabug/pentatonic.h>
 
+inline uint16_t biased_random(uint8_t value) {
+	return value / 4 * (rand() & 7);
+}
+
 static void init(void) {
 	pentatonic_direction(ALL_OUT);
 	photons_init();
@@ -13,14 +17,23 @@ static void init(void) {
 }
 
 static void run(void) {
-	uint8_t light = photons_measure();
+	uint16_t light = photons_measure();
 
 	pentatonic_all_led_set(light >> 3);
 
-	led_inv(LEFT);
-	led_inv(RIGHT);
+	motor_set(biased_random(light) > 0x50 ? ON : OFF);
 
-	wait_ms(100);
+	led_set(RIGHT, biased_random(light) > 0x20);
+	led_set(LEFT, biased_random(light) > 0x20);
+
+	if(biased_random(light) > 0x90) {
+		uint16_t tone = (biased_random(light) * 2) + 500;
+		set_note(tone, 0);
+	} else {
+		stop_note();
+	}
+
+	wait_ms(200);
 }
 
 REGISTER(run, init, NULL);
diff --git a/firmware/main.c b/firmware/main.c
index 2ceac37..f788641 100644
--- a/firmware/main.c
+++ b/firmware/main.c
@@ -69,5 +69,4 @@ int main(void) {
 			}
 		}
 	}
-
 }