diff --git a/source/main.cpp b/source/main.cpp
index 29e8bec..156a22c 100644
--- a/source/main.cpp
+++ b/source/main.cpp
@@ -11,13 +11,16 @@ SDL_Renderer *renderer = NULL;
 SDL_Event *event;
 Texture *texture = nullptr;
 std::vector<Ball *> balls;
-int test[5] = {1, 10, 100, 500, 1000};
+int test[6] = {1, 10, 100, 500, 1000, 10000};
 
 bool shouldExit = false;
 Uint32 ticks = 0;
 
+void deleteBalls();
+
 void initBalls(int value)
 {
+	deleteBalls();
 	for (int i = 0; i < test[value]; ++i)
 	{
 		const int sign = ((rand() % 2) * 2) - 1;
@@ -42,6 +45,19 @@ void pushUpBalls()
 	}
 }
 
+void deleteBalls()
+{
+	for (auto ball : balls)
+	{
+		if (ball)
+		{
+			delete ball;
+			ball = nullptr;
+		}
+	}
+	balls.clear();
+}
+
 bool init()
 {
 	// Initialization flag
@@ -62,7 +78,7 @@ bool init()
 		}
 
 		// Create window
-		window = SDL_CreateWindow("SDL Tutorial", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH * 2, SCREEN_HEIGHT * 2, SDL_WINDOW_SHOWN);
+		window = SDL_CreateWindow("Demo Pelotas 2", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, SCREEN_WIDTH * 2, SCREEN_HEIGHT * 2, SDL_WINDOW_SHOWN);
 		if (window == NULL)
 		{
 			printf("Window could not be created! SDL Error: %s\n", SDL_GetError());
@@ -125,15 +141,7 @@ void close()
 		texture = nullptr;
 	}
 
-	for (auto ball : balls)
-	{
-		if (ball)
-		{
-			delete ball;
-			ball = nullptr;
-		}
-	}
-	balls.clear();
+	deleteBalls();
 
 	// Quit SDL subsystems
 	IMG_Quit();
@@ -158,6 +166,36 @@ void checkEvents()
 			{
 				pushUpBalls();
 			}
+
+			if (event->key.keysym.sym == SDLK_1)
+			{
+				initBalls(0);
+			}
+
+			if (event->key.keysym.sym == SDLK_2)
+			{
+				initBalls(1);
+			}
+
+			if (event->key.keysym.sym == SDLK_3)
+			{
+				initBalls(2);
+			}
+
+			if (event->key.keysym.sym == SDLK_4)
+			{
+				initBalls(3);
+			}
+
+			if (event->key.keysym.sym == SDLK_5)
+			{
+				initBalls(4);
+			}
+
+			if (event->key.keysym.sym == SDLK_6)
+			{
+				initBalls(5);
+			}
 		}
 	}
 }