diff --git a/data/gfx/balloon4.ani b/data/gfx/balloon4.ani
index 1db5a21..abd9c7a 100644
--- a/data/gfx/balloon4.ani
+++ b/data/gfx/balloon4.ani
@@ -31,7 +31,7 @@ frames=36,37,38,39,40,41,42,43,44,45
 
 [animation]
 name=powerball
-speed=20
+speed=10
 loop=0
 frames=48
 [/animation]
diff --git a/data/gfx/balloon4.png b/data/gfx/balloon4.png
index f5f63da..8608d57 100644
Binary files a/data/gfx/balloon4.png and b/data/gfx/balloon4.png differ
diff --git a/source/animatedsprite.cpp b/source/animatedsprite.cpp
index 9cb2ae6..c11924f 100644
--- a/source/animatedsprite.cpp
+++ b/source/animatedsprite.cpp
@@ -325,7 +325,7 @@ bool AnimatedSprite::loadFromVector(std::vector<std::string> *source)
 
 	// Recorre todo el vector
 	int index = 0;
-	while (index < source->size())
+	while (index < (int)source->size())
 	{
 		// Lee desde el vector
 		line = source->at(index);
diff --git a/source/balloon.cpp b/source/balloon.cpp
index 53e0949..6bdb26e 100644
--- a/source/balloon.cpp
+++ b/source/balloon.cpp
@@ -209,7 +209,7 @@ Balloon::Balloon(float x, float y, Uint8 kind, float velx, float speed, Uint16 c
 
 		// Añade rotación al sprite
 		mSprite->setRotate(false);
-		mSprite->setRotateSpeed(1);
+		mSprite->setRotateSpeed(0);
 		mSprite->setRotateAmount(2.0);
 
 		break;
@@ -254,8 +254,8 @@ Balloon::Balloon(float x, float y, Uint8 kind, float velx, float speed, Uint16 c
 	mVisible = true;
 	mInvulnerable = true;
 	mBeingCreated = true;
-	 mCreationCounter = creationtimer;
-	 mCreationCounterIni = creationtimer;
+	mCreationCounter = creationtimer;
+	mCreationCounterIni = creationtimer;
 	mPopping = false;
 
 	mCounter = 0;
@@ -300,31 +300,41 @@ void Balloon::render()
 	{
 		if (mBouncing.enabled)
 		{
-			// Aplica desplazamiento para el zoom
-			mSprite->setPosX(getPosX() + mBouncing.despX);
-			mSprite->setPosY(getPosY() + mBouncing.despY);
-			mSprite->render();
-			mSprite->setPosX(getPosX() - mBouncing.despX);
-			mSprite->setPosY(getPosY() - mBouncing.despY);
+			if (mKind != POWER_BALL)
+			{
+				// Aplica desplazamiento para el zoom
+				mSprite->setPosX(getPosX() + mBouncing.despX);
+				mSprite->setPosY(getPosY() + mBouncing.despY);
+				mSprite->render();
+				mSprite->setPosX(getPosX() - mBouncing.despX);
+				mSprite->setPosY(getPosY() - mBouncing.despY);
+			}
 		}
 		else if (isBeingCreated())
 		{
 			// Aplica alpha blending
 			mSprite->getTexture()->setAlpha(255 - (int)((float)mCreationCounter * (255.0f / (float)mCreationCounterIni)));
 			mSprite->render();
+			if (mKind == POWER_BALL)
+			{
+				Sprite *sp = new Sprite(mSprite->getRect(), mSprite->getTexture(), mSprite->getRenderer());
+				sp->setSpriteClip(370, 148, 37, 37);
+				sp->render();
+				delete sp;
+			}
 			mSprite->getTexture()->setAlpha(255);
 		}
 		else
 		{
 			mSprite->render();
-		}
 
-		if (mKind == POWER_BALL)
-		{
-			Sprite *sp = new Sprite(mSprite->getRect() ,mSprite->getTexture(),mSprite->getRenderer());
-			sp->setSpriteClip(370,148,37,37);
-			sp->render();
-			delete sp;
+			if (mKind == POWER_BALL)
+			{
+				Sprite *sp = new Sprite(mSprite->getRect(), mSprite->getTexture(), mSprite->getRenderer());
+				sp->setSpriteClip(370, 148, 37, 37);
+				sp->render();
+				delete sp;
+			}
 		}
 	}
 }
@@ -351,7 +361,10 @@ void Balloon::move()
 			mSprite->switchRotate();
 
 			// Activa el efecto de rebote
-			bounceStart();
+			if (mKind != POWER_BALL)
+			{
+				bounceStart();
+			}
 		}
 
 		// Mueve el globo hacia arriba o hacia abajo
@@ -367,7 +380,10 @@ void Balloon::move()
 			mVelY = -mVelY;
 
 			// Activa el efecto de rebote
-			bounceStart();
+			if (mKind != POWER_BALL)
+			{
+				bounceStart();
+			}
 		}
 
 		// Si el globo se sale por la parte inferior
@@ -380,7 +396,10 @@ void Balloon::move()
 			mVelY = -mDefaultVelY;
 
 			// Activa el efecto de rebote
-			bounceStart();
+			if (mKind != POWER_BALL)
+			{
+				bounceStart();
+			}
 		}
 
 		/*
diff --git a/source/game.cpp b/source/game.cpp
index 515d4ca..ffbbfe0 100644
--- a/source/game.cpp
+++ b/source/game.cpp
@@ -15,7 +15,7 @@ Game::Game(int numPlayers, int currentStage, SDL_Renderer *renderer, Screen *scr
 	// Pasa variables
 	mDemo.enabled = demo;
 	mNumPlayers = numPlayers;
-	mCurrentStage = currentStage;
+	mCurrentStage = 4;//currentStage;
 	mLastStageReached = currentStage;
 	if (mNumPlayers == 1)
 	{
@@ -2695,7 +2695,7 @@ void Game::update()
 		// Comprueba el nivel de amenaza para ver si se han de crear nuevos enemigos
 		if (!mGameCompleted)
 		{
-			updateMenace();
+			//updateMenace();
 		}
 
 		// Actualiza la velocidad de los enemigos
diff --git a/source/movingsprite.cpp b/source/movingsprite.cpp
index 291eca2..4588c40 100644
--- a/source/movingsprite.cpp
+++ b/source/movingsprite.cpp
@@ -251,7 +251,11 @@ void MovingSprite::rotate()
 	if (enabled)
 		if (rotateEnabled)
 		{
-			if (counter % rotateSpeed == 0)
+			if (rotateSpeed == 0)
+			{
+				incAngle(rotateAmount);
+			}
+			else if (counter % rotateSpeed == 0)
 			{
 				incAngle(rotateAmount);
 			}