diff --git a/assets/sounds/ambient.wav b/assets/sounds/ambient.wav
new file mode 100644
index 0000000..98dbaec
Binary files /dev/null and b/assets/sounds/ambient.wav differ
diff --git a/assets/sounds/die.wav b/assets/sounds/die.wav
new file mode 100644
index 0000000..05a6169
Binary files /dev/null and b/assets/sounds/die.wav differ
diff --git a/assets/sprites/asteroid_2.png b/assets/sprites/asteroid_2.png
new file mode 100644
index 0000000..8c5acda
Binary files /dev/null and b/assets/sprites/asteroid_2.png differ
diff --git a/main.lua b/main.lua
index 8971278..3e56e91 100644
--- a/main.lua
+++ b/main.lua
@@ -3,7 +3,11 @@ function love.load()
 	game = {}
 	game.width = 800
 	game.height = 480
+	game.play = true
+	game.score = 0
+	game.time_restart = 2
 	love.window.setMode(game.width, game.height)
+	score = { x = 500, y = 40 }
 	-- Background
 	background = {}
 	background.img = love.graphics.newImage('assets/sprites/background.jpg')
@@ -33,7 +37,7 @@ function love.load()
 	asteroids = {}
 	for i = 1, num_asteroids do
 		asteroid = {}
-		asteroid.img = love.graphics.newImage('assets/sprites/asteroid_1.png')
+		asteroid.img = love.graphics.newImage('assets/sprites/asteroid_' .. tostring(math.random(1, 2)) .. '.png')
 		asteroid.x = game.width
 		asteroid.y = {
 			(game.height / 4) - (asteroid.img:getHeight() / 2),	
@@ -41,12 +45,31 @@ function love.load()
 			3 * (game.height / 4) - (asteroid.img:getHeight() / 2),	
 		}
 		asteroid.pos = 2
-		asteroid.speed = 100
+		asteroid.speed = 800
 		asteroids[i] = asteroid
 	end
+	-- Sounds
+	sounds = {}
+	sounds.die = love.audio.newSource('assets/sounds/die.wav', 'static')	
+	sounds.ambient = love.audio.newSource('assets/sounds/ambient.wav')	
+	sounds.ambient:play()
+	sounds.ambient:setLooping(true)
 end
 
+local my_time_restart = 0
 function love.update(dt)
+	if not game.play then
+		my_time_restart = my_time_restart + dt
+		if my_time_restart > game.time_restart then
+			game.play = true
+			game.score = 0
+			my_time_restart = 0
+		end
+	end
+	-- Score
+	if game.play then
+		game.score = game.score + dt * 100
+	end
 	-- Sprite spaceship
 	if spaceship.pos_frame ~= spaceship.num_frames then
 		spaceship.pos_frame = spaceship.pos_frame + 1
@@ -60,15 +83,30 @@ function love.update(dt)
 			asteroid.x = game.width + math.random(0, game.width)
 			asteroid.pos = math.random(1, 3)
 		end
+		-- Colision
+		if checkCollision(spaceship.x + spaceship.img:getWidth() / spaceship.num_frames / 2, spaceship.y[spaceship.pos], spaceship.img:getWidth() / spaceship.num_frames / 2, spaceship.img:getHeight(), asteroid.x, asteroid.y[asteroid.pos], asteroid.img:getWidth(), asteroid.img:getHeight()) then
+			game.play = false
+			sounds.die:play()
+		end
 	end
 end
 
 function love.draw()
+	-- Background
 	love.graphics.draw(background.img, background.x, background.y)
-	love.graphics.draw(spaceship.img, spaceship.frames[spaceship.pos_frame], spaceship.x, spaceship.y[spaceship.pos])
+	-- Spaceship
+	if game.play then
+		love.graphics.draw(spaceship.img, spaceship.frames[spaceship.pos_frame], spaceship.x, spaceship.y[spaceship.pos])
+	end
+	-- Asteroids
 	for key, asteroid in pairs(asteroids) do
 		love.graphics.draw(asteroid.img, asteroid.x, asteroid.y[asteroid.pos])
 	end
+	-- Score
+	love.graphics.print('Score: ' .. math.ceil(game.score), score.x , score.y)
+	if not game.play then
+		love.graphics.print('Game over', game.width / 2, game.height / 2)
+	end
 end
 
 -- Controls
@@ -81,4 +119,11 @@ function love.keypressed(key, scancode, isrepeat)
 	elseif key == 'down' and spaceship.pos < 3 then
 		spaceship.pos = spaceship.pos + 1
 	end
+end
+
+function checkCollision(x1,y1,w1,h1, x2,y2,w2,h2)
+  return x1 < x2 + w2 and
+         x2 < x1 + w1 and
+         y1 < y2 + h2 and
+         y2 < y1 + h1
 end
\ No newline at end of file