diff --git a/rgbyteclock.c b/rgbyteclock.c
index 1a259ae..e8c5371 100644
--- a/rgbyteclock.c
+++ b/rgbyteclock.c
@@ -26,6 +26,7 @@
 #define EXTEND_SEQUENCE 8
 #define WIN 9
 
+int8_t show_anim_sequence( uint32_t now, uint32_t animation_start );
 int8_t show_intro( uint32_t now, uint32_t animation_start );
 int8_t show_introduce_colors( uint32_t now, uint32_t animation_start );
 void show_anim_wait_seed( uint32_t now, uint32_t animation_start );
@@ -42,7 +43,6 @@ static uint8_t colorScheme[2];
 
 void rgbyteclock(void) {
 	uint32_t now, t1;
-	uint16_t r,g,b; // colors
 	int8_t end;
 	uint8_t button = BUTTON_NONE;
 
@@ -109,20 +109,9 @@ void rgbyteclock(void) {
 			break;
 
 			case SHOW_SEQUENCE:
-				// TODO: animation that shows sequence color after color
-				for( int i=0; i<sequence_index; i++ ) {
-					get_color( &r, &g, &b, sequence[i] );
-					led_set( i, r, g, b );
-				}
-
-				// display last color for 2 seconds
-				if( now - t1 > 2000 || (get_button())) {
-					// hide sequence
-					for( int i=0; i<12; i++ ) {
-						get_color( &r, &g, &b, COLOR_BLACK );
-						led_set( i, r, g, b);
-					}
+				end = show_anim_sequence( now, t1 );
 
+				if( end == 1 ) {
 					gameState = GET_USER_SEQUENCE;
 					t1 = now;
 				}
@@ -247,6 +236,41 @@ int8_t get_sequence( uint32_t now, uint32_t animation_start ) {
 	##############
 */
 
+
+
+int8_t show_anim_sequence( uint32_t now, uint32_t animation_start ) {
+	uint32_t t_diff = now - animation_start;
+	uint16_t r,g,b;
+	uint8_t tmp_index;
+	const uint16_t holdTime=1000 /*ms*/, stepSpeed=500 /*ms*/;
+
+	tmp_index = (t_diff/stepSpeed) +1;
+
+	if( tmp_index > sequence_index ) {
+		tmp_index = sequence_index;
+	}
+	for( int i=0; i<tmp_index; i++ ) {
+		get_color( &r, &g, &b, sequence[i] );
+		led_set( i, r, g, b );
+	}
+
+	// display last color for 2 seconds
+	if( t_diff > (sequence_index * stepSpeed)+holdTime ) {
+		// hide sequence
+		for( int i=0; i<12; i++ ) {
+			get_color( &r, &g, &b, COLOR_BLACK );
+			led_set( i, r, g, b);
+		}
+		return 1;
+	}
+
+	return 0;
+
+}
+
+
+
+
 int8_t show_introduce_colors( uint32_t now, uint32_t animation_start ) {
 	uint32_t t_diff = now - animation_start;
 	uint16_t r,g,b;
@@ -307,19 +331,54 @@ int8_t show_intro( uint32_t now, uint32_t animation_start ) {
 	uint32_t t_diff = now - animation_start;
 	uint16_t r,g,b;
 	uint8_t index;
+	static uint8_t tmp_sequence[12], tmp;
+	static uint8_t step = 0;
 
-	index = (t_diff%1200)/100;
-	if( !(t_diff % 100) ) {
-		// every 100ms
-		get_color( &r, &g, &b, (random()%6)+1 );
-		led_set( index, r, g, b );
+	if( step == 0) {
+		for( int i=0; i<12; i++) {
+			tmp_sequence[i] =  (random()%6)+1;
+		}
+		step = 1;
 	}
 
-	// next LED in line is dark to mark the update spot better
-	index++;
-	led_set( index%12, 0,0,0 );
+	index = (t_diff%1200)/100;
 
-	if( now - animation_start > 2400 ) {
+	// print a chain of random colors
+	if( !(t_diff % 100) && (step == 1) ) {
+		PORTC ^=(1<<PC5);
+		// every 100ms
+		get_color( &r, &g, &b, tmp_sequence[index] );
+		led_set( index, r, g, b );
+
+		// goto next animation sequence
+		if( t_diff > 1200 ) {
+			step = 2;
+		}
+	}
+
+
+
+	// rotate chain 180 degrees
+	if( !(t_diff % 100) && (step == 2) ) {
+		// barrelshift every 100ms
+		tmp = tmp_sequence[11];
+		for( int i=10; i>=0; i-- ) {
+			tmp_sequence[i+1] = tmp_sequence[i];
+		}
+		tmp_sequence[0] = tmp;
+
+		// update all at once
+		for(int i=0; i<12; i++ ) {
+			get_color( &r, &g, &b, tmp_sequence[i] );
+			led_set( i, r, g, b );
+		}
+	}
+
+	//led_set( index, r, g, b );
+
+
+	if( (now - animation_start) > 2400 ) {
+		step = 0;
 		return 1;
 	}
 	return 0;