diff --git a/arduino_pong.ino b/arduino_pong.ino
index 91b637f..5f3be43 100644
--- a/arduino_pong.ino
+++ b/arduino_pong.ino
@@ -36,12 +36,15 @@ enum game_statuses : uint8_t {
 game_statuses game_status= TIMER;
 
 Ball ball(4, 6);
-HumanPaddle p1(1, P1_BTN_UP, P1_BTN_BOTTOM);
-// HumanPaddle p2(4, P2_BTN_UP, P2_BTN_BOTTOM);
-// BotPaddle p1(1, 0, 2);
-BotPaddle p2(4, MATRIX_WIDTH-1, 1);
-Engine engine(p1, p2, ball, INITIAL_BALL_DELAY);
-Renderer renderer(p1, p2, ball, frame, matrix);
+
+Paddle* p1 = nullptr;
+Paddle* p2 = nullptr;
+HumanPaddle human_p1(1, P1_BTN_UP, P1_BTN_BOTTOM);
+HumanPaddle human_p2(4, P2_BTN_UP, P2_BTN_BOTTOM);
+BotPaddle bot_p1(1, 0, 2);
+BotPaddle bot_p2(4, MATRIX_WIDTH-1, 1);
+Engine engine(*p1, *p2, ball, INITIAL_BALL_DELAY);
+Renderer renderer(*p1, *p2, ball, frame, matrix);
 
 void setup() {
   Serial.begin(9600);
@@ -62,11 +65,23 @@ void loop() {
   switch (game_status) {
 
     case MENU:
-      // show menu on the matrix
+      // TODO render menu on matrix
+      // i could use slideshow
       // 1. P vs P
+      if (digitalRead(P1_BTN_UP) == LOW) {
+        p1= &human_p1;
+        p2= &human_p2;
+      }
       // 2. P vs CPU
+      else if (digitalRead(P1_BTN_BOTTOM) == LOW) {
+        p1= &human_p1;
+        p2= &bot_p2;
+      }
       // 3. CPU vs CPU
-      // slideshow menu
+      else if (digitalRead(P2_BTN_UP) == LOW) {
+        p1= &bot_p1;
+        p2= &bot_p2;
+      }
       break;
 
     case TIMER:
@@ -101,7 +116,7 @@ void loop() {
       renderer.render_score();
       engine.restart_ball();
       delay(1000);
-      if (p1.get_score() >= MAX_POINTS || p2.get_score() >= MAX_POINTS)
+      if (p1->get_score() >= MAX_POINTS || p2->get_score() >= MAX_POINTS)
         game_status= GAMEOVER;
       else {
         game_status= RUN;