diff --git a/game-ctrl/Makefile b/game-ctrl/Makefile
index a8a67e1..52c1730 100644
--- a/game-ctrl/Makefile
+++ b/game-ctrl/Makefile
@@ -11,7 +11,7 @@ CFLAGS=-Wall -mmcu=$(MCU) -std=gnu99 -I $(TOOLCHAIN_PREFIX)/include -O1 -g0
 
 LDFLAGS=-mmcu=$(MCU) -L $(TOOLCHAIN_PREFIX)/include
 
-$(ARTIFACT).elf:	main.o spi.o scheduler.o canvas.o shapes.o game.o buttons.o myrand.o display.o sound.o eeprom.o
+$(ARTIFACT).elf:	main.o spi.o scheduler.o canvas.o shapes.o game.o buttons.o myrand.o display.o sound.o eeprom.o config.o
 	$(CC) -o $@ $(LDFLAGS) $^
 	$(OBJDUMP) -D $(ARTIFACT).elf > $(ARTIFACT).txt
 
diff --git a/game-ctrl/buttons.c b/game-ctrl/buttons.c
index c640a2e..ce48155 100644
--- a/game-ctrl/buttons.c
+++ b/game-ctrl/buttons.c
@@ -20,6 +20,14 @@ static uint8_t buttonsMoveLeftPressed() {
   return res;
 }
 
+bool isConfigMode() {
+  return (P2IN & BIT4);
+}
+
+bool buttonsConfig1Pressed() {
+  return buttonsMoveLeftPressed();
+}
+
 static uint8_t buttonsMoveRightPressed() {
   static uint8_t last = 0;
   uint8_t current = (P2IN & BIT0);
@@ -28,6 +36,10 @@ static uint8_t buttonsMoveRightPressed() {
   return res;
 }
 
+bool buttonsConfig4Pressed() {
+  return buttonsMoveRightPressed();
+}
+
 static uint8_t buttonsRotateLeftPressed() {
   static uint8_t last = 0;
   uint8_t current = (P2IN & BIT3);
@@ -36,6 +48,10 @@ static uint8_t buttonsRotateLeftPressed() {
   return res;
 }
 
+bool buttonsConfig2Pressed() {
+  return buttonsRotateLeftPressed();
+}
+
 static uint8_t buttonsRotateRightPressed() {
   static uint8_t last = 0;
   uint8_t current = (P2IN & BIT1);
@@ -44,6 +60,11 @@ static uint8_t buttonsRotateRightPressed() {
   return res;
 }
 
+bool buttonsConfig3Pressed() {
+  return buttonsRotateRightPressed();
+}
+
+
 static uint8_t buttonsMoveDownPressed() {
   return P2IN & BIT2;
 }
@@ -104,7 +125,9 @@ void buttonsExec(void *handle) {
 
 void buttonsInit() {
   P2DIR &= ~(BIT0|BIT1|BIT2|BIT3|BIT4);
+}
 
+void buttonsStart() {
   schAdd(buttonsExec, NULL, 0, 25);
 }
 
diff --git a/game-ctrl/buttons.h b/game-ctrl/buttons.h
index 72e9c69..8cf6ecb 100644
--- a/game-ctrl/buttons.h
+++ b/game-ctrl/buttons.h
@@ -4,7 +4,13 @@
 #include <stdbool.h>
 
 void buttonsInit();
+void buttonsStart();
 bool isGameActive();
+bool isConfigMode();
+bool buttonsConfig1Pressed();
+bool buttonsConfig2Pressed();
+bool buttonsConfig3Pressed();
+bool buttonsConfig4Pressed();
 
 
 #endif // _BUTTONS_H_
diff --git a/game-ctrl/config.c b/game-ctrl/config.c
new file mode 100644
index 0000000..3cb70a4
--- /dev/null
+++ b/game-ctrl/config.c
@@ -0,0 +1,65 @@
+#include <stddef.h>
+#include "config.h"
+#include "canvas.h"
+#include "../rgb-driver/colors.h"
+#include "scheduler.h"
+#include "buttons.h"
+#include "eeprom.h"
+
+
+typedef enum { e_Config_Flash, e_Config_ResetHighscore, e_Config_End } t_ConfigState;
+
+static bool configChanged = false;
+
+static void configHandleFlash() {
+  canvasSetPixel(0, 1, eepromReadFlashColor());
+
+  if (buttonsConfig2Pressed()) {
+    configChanged = true;
+    uint8_t color = eepromReadFlashColor() + 1;
+    if (color == _color_end) {
+      color = 0;
+    }
+    eepromSetFlashColor(color);
+  }
+}
+
+static void configHandleResetHighScore() {
+}
+
+void (*configHandler[])(void) = { configHandleFlash, configHandleResetHighScore };
+
+
+void configExec(void *handle) {
+  static t_ConfigState configState = e_Config_Flash;
+
+  if (buttonsConfig1Pressed()) {
+    configState += 1;
+    if (configState == e_Config_End) {
+      configState = e_Config_Flash;
+    }
+    canvasClear();
+
+    canvasSetPixel(configState, 0, _red);
+  }
+
+  configHandler[configState]();
+
+  if (configChanged) {
+    canvasSetPixel(0, 2, _red);
+    if (buttonsConfig4Pressed()) {
+      eepromCommit();
+      configChanged = false;
+    }
+  } else {
+    canvasSetPixel(0, 2, _green);
+  }
+
+
+  canvasShow();
+}
+
+
+void configInit() {
+  schAdd(configExec, NULL, 0, 25);
+}
diff --git a/game-ctrl/config.h b/game-ctrl/config.h
new file mode 100644
index 0000000..edd8067
--- /dev/null
+++ b/game-ctrl/config.h
@@ -0,0 +1,8 @@
+#ifndef _CONFIG_H_
+#define _CONFIG_H_
+
+
+void configInit();
+
+
+#endif // _CONFIG_H_
diff --git a/game-ctrl/eeprom.c b/game-ctrl/eeprom.c
index 605cd97..d2b9982 100644
--- a/game-ctrl/eeprom.c
+++ b/game-ctrl/eeprom.c
@@ -3,7 +3,7 @@
 #include "spi.h"
 
 
-#define MAGIC 0xaffe
+#define MAGIC 0xafff
 #define HIGHSCORE_ADDR 0x00
 #define DUMMY 0x00
 #define CMD_READ  0b00000011
@@ -12,12 +12,15 @@
 #define CMD_WREN  0b00000110
 
 
+typedef struct {
+  uint16_t magic;
+  uint16_t highScore;
+  uint8_t flashColor;
+} t_configBlock;
+
 typedef union {
-  uint8_t buffer[4];
-  struct {
-    uint16_t magic;
-    uint16_t highScore;
-  } v;
+  t_configBlock v;
+  uint8_t buffer[sizeof(t_configBlock)];
 } eepromBuf_t;
 
 eepromBuf_t buf;
@@ -30,10 +33,9 @@ static void writeBuf() {
   spiSendBegin(e_SPI_EEPROM);
   spiSendOctet(CMD_WRITE);
   spiSendOctet(HIGHSCORE_ADDR);
-  spiSendOctet(buf.buffer[0]);
-  spiSendOctet(buf.buffer[1]);
-  spiSendOctet(buf.buffer[2]);
-  spiSendOctet(buf.buffer[3]);
+  for (uint8_t i = 0; i < sizeof(t_configBlock); i++) {
+    spiSendOctet(buf.buffer[i]);
+  }
   spiSendEnd(e_SPI_EEPROM);
 }
 
@@ -43,14 +45,10 @@ static void readBuf() {
   spiReceiveOctet();
   spiSendOctet(HIGHSCORE_ADDR);
   spiReceiveOctet();
-  spiSendOctet(DUMMY);
-  buf.buffer[0] = spiReceiveOctet();
-  spiSendOctet(DUMMY);
-  buf.buffer[1] = spiReceiveOctet();
-  spiSendOctet(DUMMY);
-  buf.buffer[2] = spiReceiveOctet();
-  spiSendOctet(DUMMY);
-  buf.buffer[3] = spiReceiveOctet();
+  for (uint8_t i = 0; i < sizeof(t_configBlock); i++) {
+    spiSendOctet(DUMMY);
+    buf.buffer[i] = spiReceiveOctet();
+  }
   spiSendEnd(e_SPI_EEPROM);
 }
 
@@ -60,16 +58,29 @@ void eepromInit() {
   if (buf.v.magic != MAGIC) {
     buf.v.magic = MAGIC;
     buf.v.highScore = 0;
+    buf.v.flashColor = 0;
     writeBuf();
   }
 }
 
+void eepromCommit() {
+  writeBuf();
+}
+
 uint16_t eepromReadHighScore() {
   return buf.v.highScore;
 }
 
-void eepromWriteHighScore(uint16_t v) {
+void eepromSetHighScore(uint16_t v) {
   buf.v.highScore = v;
   writeBuf();
 }
 
+uint8_t eepromReadFlashColor() {
+  return buf.v.flashColor;
+}
+
+void eepromSetFlashColor(uint8_t v) {
+  buf.v.flashColor = v;
+}
+
diff --git a/game-ctrl/eeprom.h b/game-ctrl/eeprom.h
index 0caf393..1e1222a 100644
--- a/game-ctrl/eeprom.h
+++ b/game-ctrl/eeprom.h
@@ -6,7 +6,10 @@
 
 void eepromInit();
 uint16_t eepromReadHighScore();
-void eepromWriteHighScore(uint16_t v);
+void eepromSetHighScore(uint16_t v);
+uint8_t eepromReadFlashColor();
+void eepromSetFlashColor(uint8_t v);
+void eepromCommit();
 
 
 
diff --git a/game-ctrl/game.c b/game-ctrl/game.c
index 44963fa..eeb15ce 100644
--- a/game-ctrl/game.c
+++ b/game-ctrl/game.c
@@ -105,7 +105,8 @@ void gameExec(void *handle) {
         score += level;
         if (score > eepromReadHighScore()) {
           newHighScoreAchieved = true;
-          eepromWriteHighScore(score);
+          eepromSetHighScore(score);
+          eepromCommit();
         }
         state = e_ClearRowFlash;
       } else {
@@ -114,7 +115,7 @@ void gameExec(void *handle) {
       break;
 
     case e_ClearRowFlash:
-      canvasFillRow(clearCheckCnt, _flash);
+      canvasFillRow(clearCheckCnt, eepromReadFlashColor());
       state = e_ClearRowFlashDelay;
       break;
 
diff --git a/game-ctrl/main.c b/game-ctrl/main.c
index 88ff97b..ccde948 100644
--- a/game-ctrl/main.c
+++ b/game-ctrl/main.c
@@ -13,6 +13,7 @@
 #include "spi.h"
 #include "display.h"
 #include "eeprom.h"
+#include "config.h"
 
 
 int main() {
@@ -33,11 +34,16 @@ int main() {
     displayInit();
     myRandInit();
     canvasInit();
-
-    shapesInit();
-    gameInit();
     buttonsInit();
 
+    if (isConfigMode()) {
+      configInit();
+    } else {
+      shapesInit();
+      gameInit();
+      buttonsStart();
+    }
+
     __enable_interrupt();
 
     while (1) {
diff --git a/rgb-driver/colors.S b/rgb-driver/colors.S
index 0536039..04c4208 100644
--- a/rgb-driver/colors.S
+++ b/rgb-driver/colors.S
@@ -8,7 +8,7 @@ colors:
   .global colors
   ;;      red, green, blue, padding
 off:
-  .byte   0x00, 0x00, 0x00, 0
+  .byte   0x00, 0x00, 0x00, 0  ;; off
 blue:
   .byte   0x00>>DIMM_FACTOR, 0x00>>DIMM_FACTOR, 0xff>>DIMM_FACTOR, 0
 green:
@@ -36,8 +36,5 @@ white:
 red:
   .byte   0xff>>DIMM_FACTOR, 0x00>>DIMM_FACTOR, 0x00>>DIMM_FACTOR, 0
 flash:
-  ;; .byte   0xff, 0x00, 0x00, 0
-  ;; .byte   0xff, 0xff, 0xff, 0
-  .byte   0x00, 0x00, 0x00, 0
-  ;; .byte   0x80>>3, 0x00>>3, 0xff>>3, 0
+  .byte   0xff, 0xff, 0xff, 0
 
diff --git a/rgb-driver/colors.h b/rgb-driver/colors.h
index 352fdd4..c66855a 100644
--- a/rgb-driver/colors.h
+++ b/rgb-driver/colors.h
@@ -17,7 +17,7 @@
 #define _white 0x0c
 #define _red 0x0d
 #define _flash 0x0e
-
+#define _color_end 0x0f
 
 
 #endif