diff --git a/src/GameBall/logic/player_input.cpp b/src/GameBall/logic/player_input.cpp
index c002a91..6b394a0 100644
--- a/src/GameBall/logic/player_input.cpp
+++ b/src/GameBall/logic/player_input.cpp
@@ -13,6 +13,9 @@ PlayerInput PlayerInputController::GetInput() {
   input_.move_left = (glfwGetKey(window, GLFW_KEY_A) == GLFW_PRESS);
   input_.move_right = (glfwGetKey(window, GLFW_KEY_D) == GLFW_PRESS);
   input_.brake = (glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS);
+  input_.accelerate = (glfwGetKey(window, GLFW_KEY_X) == GLFW_PRESS);
+  input_.flip_gravity = (glfwGetKey(window, GLFW_KEY_C) == GLFW_PRESS);
+
   auto camera_controller = app_->CameraController();
   auto pitch_yaw = camera_controller->GetPitchYaw();
   auto pitch = pitch_yaw.x;
@@ -21,6 +24,7 @@ PlayerInput PlayerInputController::GetInput() {
                         -glm::cos(glm::radians(yaw))};
   auto result = input_;
   input_ = {};
+  input_.flip_gravity = result.flip_gravity;
   return result;
 }
 
diff --git a/src/GameBall/logic/player_input.h b/src/GameBall/logic/player_input.h
index 98b60c0..5c19b74 100644
--- a/src/GameBall/logic/player_input.h
+++ b/src/GameBall/logic/player_input.h
@@ -12,6 +12,8 @@ struct PlayerInput {
   bool move_left{false};
   bool move_right{false};
   bool brake{false};
+  bool accelerate{false};
+  bool flip_gravity{0};
   glm::vec3 orientation{0.0f, 0.0f, 1.0f};
 };
 
diff --git a/src/GameBall/logic/units/regular_ball.cpp b/src/GameBall/logic/units/regular_ball.cpp
index af1cc95..b095880 100644
--- a/src/GameBall/logic/units/regular_ball.cpp
+++ b/src/GameBall/logic/units/regular_ball.cpp
@@ -45,43 +45,57 @@ void RegularBall::UpdateTick() {
   auto physics_world = world_->PhysicsWorld();
   auto &sphere = physics_world->GetSphere(sphere_id_);
 
-  //  auto owner = world_->GetPlayer(player_id_);
-  //  if (owner) {
-  //    if (UnitId() == owner->PrimaryUnitId()) {
-  //      auto input = owner->TakePlayerInput();
-  //
-  //      glm::vec3 forward = glm::normalize(glm::vec3{input.orientation});
-  //      glm::vec3 right =
-  //          glm::normalize(glm::cross(forward, glm::vec3{0.0f, 1.0f, 0.0f}));
-  //
-  //      glm::vec3 moving_direction{};
-  //
-  //      float angular_acceleration = glm::radians(2880.0f);
-  //
-  //      if (input.move_forward) {
-  //        moving_direction -= right;
-  //      }
-  //      if (input.move_backward) {
-  //        moving_direction += right;
-  //      }
-  //      if (input.move_left) {
-  //        moving_direction -= forward;
-  //      }
-  //      if (input.move_right) {
-  //        moving_direction += forward;
-  //      }
-  //
-  //      if (glm::length(moving_direction) > 0.0f) {
-  //        moving_direction = glm::normalize(moving_direction);
-  //        sphere.angular_velocity +=
-  //            moving_direction * angular_acceleration * delta_time;
-  //      }
-  //
-  //      if (input.brake) {
-  //        sphere.angular_velocity = glm::vec3{0.0f};
-  //      }
-  //    }
-  //  }
+   auto owner = world_->GetPlayer(player_id_);
+   if (owner) {
+     if (UnitId() == owner->PrimaryUnitId()) {
+       auto input = owner->TakePlayerInput();
+  
+       glm::vec3 forward = glm::normalize(glm::vec3{input.orientation});
+       glm::vec3 right =
+           glm::normalize(glm::cross(forward, glm::vec3{0.0f, 1.0f, 0.0f}));
+  
+       glm::vec3 moving_direction{};
+  
+       float angular_acceleration = glm::radians(2880.0f);
+  
+       if (input.move_forward) {
+         moving_direction -= right;
+       }
+       if (input.move_backward) {
+         moving_direction += right;
+       }
+       if (input.move_left) {
+         moving_direction -= forward;
+       }
+       if (input.move_right) {
+         moving_direction += forward;
+       }
+
+	   float acceleration_multiplier = 1;
+	   if (input.accelerate) {
+	      acceleration_multiplier = 1.5;
+	   }
+  
+       if (glm::length(moving_direction) > 0.0f) {
+         moving_direction = glm::normalize(moving_direction);
+         sphere.angular_velocity +=
+             acceleration_multiplier * moving_direction * angular_acceleration * delta_time;
+       }
+  
+       if (input.brake) {
+         sphere.angular_velocity = glm::vec3{0.0f};
+       }
+
+	   if (input.flip_gravity) {
+		  if (sphere.flip_gravity_lapsed >= delta_time * 8) {
+	         sphere.gravity = sphere.gravity * float(-1);
+		  }
+		  sphere.flip_gravity_lapsed = 0;
+	   }
+	   
+	   sphere.flip_gravity_lapsed += delta_time;
+     }
+   }
 
   sphere.velocity *= std::pow(0.5f, delta_time);
   sphere.angular_velocity *= std::pow(0.2f, delta_time);
diff --git a/src/GameX/physics/rigid_body.h b/src/GameX/physics/rigid_body.h
index 4b43b4d..24a668b 100644
--- a/src/GameX/physics/rigid_body.h
+++ b/src/GameX/physics/rigid_body.h
@@ -16,5 +16,7 @@ struct RigidBody {
   glm::vec3 gravity{0.0f, -9.8f, 0.0f};
   float friction{0.0f};
   float elasticity{0.0f};
+
+  float flip_gravity_lapsed{0.0f};
 };
 }  // namespace GameX::Physics