diff --git a/snake_arduino/snake_arduino.ino b/snake_arduino/snake_arduino.ino
index a4a56d9..500fc82 100644
--- a/snake_arduino/snake_arduino.ino
+++ b/snake_arduino/snake_arduino.ino
@@ -15,7 +15,7 @@ byte frame[8][12] = {
   { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
 };
 
-const uint32_t game_over[] = {
+const uint32_t frame_game_over[] = {
   0x20410809,
   0x600600,
   0x90108204,
@@ -70,6 +70,17 @@ void eat_apple() {
   add_tail_block();
 }
 
+void game_over() {
+  // XXX show X
+  delay(1000)
+  // show points
+  for (int i=0; i < points; i++) {
+    frame[0][i]= 1;
+    delay(100);
+  }
+  while (1 != 0) {}
+}
+
 void move_snake() {
   /*
     starting from head, save curr position w and h
@@ -85,6 +96,8 @@ void move_snake() {
     frame[snake_y[i-1]][snake_x[i-1]]= 1;
     snake_x[i]= snake_x[i-1];
     snake_y[i]= snake_y[i-1];
+    if (snake_x[0] == snake_x[i] && snake_y == snake_y[i])
+      game_over();
   }
 
   //move the snake head