diff --git a/CORTEX_M4F_STM32F407ZG-SK/game/game.c b/CORTEX_M4F_STM32F407ZG-SK/game/game.c
index 0f1e136..5fc2fef 100644
--- a/CORTEX_M4F_STM32F407ZG-SK/game/game.c
+++ b/CORTEX_M4F_STM32F407ZG-SK/game/game.c
@@ -156,6 +156,111 @@ GAME_Update()
 					BallReset();
 			}
 
+			if( ballY <= player1Y + player1H ){
+					if( ballX + ballSize >= player1X && ballX <= player1X + player1W ){
+						if( ballX - ballSize <= player1Y + player1W/4 ){
+							ballVY = 3;
+							ballVX =-7;
+						}
+						else if( ballX >= player1Y + player1W - player1W/4 ){
+							ballVY = 3;
+							ballVX = 7;
+						}
+						else if( ballX + ballSize < player1Y + player1W/2 ){
+							ballVY = 7;
+							ballVX =-3;
+						}
+						else if( ballX > player1Y + player1W/2 ){
+							ballVY = 7;
+							ballVX = 3;
+						}
+						else{
+							ballVY = 9;
+							ballVX = 0;
+						}
+					}
+					else
+						BallReset();
+				}
+			}
+		}
+		else{	//if demoMode == 1
+
+			//Player1 move
+			if( ballVY < 0 ){
+				if( player1X + player1W/2 < ballX + ballSize/2 )
+					player1X += 8;
+				else
+					player1X -= 8;
+
+			}
+
+			if( player1X <= 0 )
+				player1X = 0;
+			else if( player1X + player1W >= LCD_PIXEL_WIDTH )
+				player1X = LCD_PIXEL_WIDTH - player1W;
+
+			//Player2 move
+			if( ballVY > 0 ){
+				if( player2X + player2W/2 < ballX + ballSize/2 )
+					player2X += 8;
+				else
+					player2X -= 8;
+
+			}
+
+			if( player2X <= 0 )
+				player2X = 0;
+			else if( player2X + player2W >= LCD_PIXEL_WIDTH )
+				player2X = LCD_PIXEL_WIDTH - player2W;
+
+
+			//Ball
+			if( ballIsRun == 1 ){
+
+				LCD_SetTextColor( LCD_COLOR_BLACK );
+				LCD_DrawFullRect( ballX, ballY, ballSize, ballSize );
+
+				//Touch wall
+				ballX += ballVX;
+				if( ballX <= 0 ){
+					ballX = 0;
+					ballVX *= -1;
+				}
+				else if( ballX + ballSize >= LCD_PIXEL_WIDTH ){
+					ballX = LCD_PIXEL_WIDTH - ballSize;
+					ballVX *= -1;
+				}
+
+				//PONG!
+				ballY += ballVY;
+				if( ballY + ballSize >= player2Y ){
+					if( ballX + ballSize >= player2X && ballX <= player2X + player2W ){
+					if( ballX - ballSize <= player2Y + player2W/4 ){
+						ballVY =-3;
+						ballVX =-7;
+					}
+					else if( ballX >= player2Y + player2W - player2W/4 ){
+						ballVY =-3;
+						ballVX = 7;
+					}
+					else if( ballX + ballSize < player2Y + player2W/2 ){
+						ballVY =-7;
+						ballVX =-3;
+					}
+					else if( ballX > player2Y + player2W/2 ){
+						ballVY =-7;
+						ballVX = 3;
+					}
+					else{
+						ballVY =-9;
+						ballVX = 0;
+					}
+				}
+				else
+					BallReset();
+			}
+
 			if( ballY <= player1Y + player1H ){
 				if( ballX + ballSize >= player1X && ballX <= player1X + player1W ){
 					if( ballX - ballSize <= player1Y + player1W/4 ){
@@ -184,8 +289,6 @@ GAME_Update()
 			}
 		}
 	}
-	else{	//if demoMode == 1
-	}
 }
 
 	void