diff --git a/data/animations.lua b/data/animations.lua
index 96902e7..69fc144 100644
--- a/data/animations.lua
+++ b/data/animations.lua
@@ -1,11 +1,17 @@
 
 animations = {
+    ["hero_stand"] = {
+        cycle = {1},
+        frames = {
+            { frame={x=0,y=0,w=16,h=17}, wait=2 },
+        }
+    },
     ["hero_walk"] = {
         cycle = {1,2,1,3},
         frames = {
-            { frame={x=0,y=0,w=16,h=17}, wait=4 },
-            { frame={x=16,y=0,w=16,h=17}, wait=4 },
-            { frame={x=32,y=0,w=16,h=17}, wait=4 }
+            { frame={x=0,y=0,w=16,h=17}, wait=2 },
+            { frame={x=16,y=0,w=16,h=17}, wait=2 },
+            { frame={x=32,y=0,w=16,h=17}, wait=2 }
         }
     }
 }
\ No newline at end of file
diff --git a/data/editor.lua b/data/editor.lua
index ccbf50f..2b9e691 100644
--- a/data/editor.lua
+++ b/data/editor.lua
@@ -12,6 +12,7 @@ editor = {
     enable = function()
         app.update = editor.update
         sys.beat(2)
+        shader.disable();
     end,
 
     update = function()
@@ -141,6 +142,20 @@ editor = {
         end
     end,
 
+    play=function()
+        if editor.modified then
+            msgbox.show("IE MEN!",
+                {"Hi ha canvis sense guardar.", "Vols guardar-los abans de jugar?"}, 
+                {
+                    {"Cancel", app.pop},
+                    {"No", function() app.pop() game.enable() end},
+                    {"Yes", function() app.pop() rooms.save() game.enable() end}
+                } )
+        else
+            game.enable()
+        end
+    end,
+
     picker = {
 
         show = function()
diff --git a/data/game.lua b/data/game.lua
index c4a75be..18da5ce 100644
--- a/data/game.lua
+++ b/data/game.lua
@@ -2,17 +2,23 @@ game = {
 
     enable = function()
         app.update = game.update
-        sys.beat(20)
+        sys.beat(2)
+        shader.enable();
     end,
 
     update = function()
         view.origin(0,0)
         surf.target(0)
+        view.clip()
 
         score.draw()
 
         -- Pintar el mapa i sprites
         rooms.draw()
+		sprites.update()
 
+        if key.down(key.ESCAPE) then
+            editor.enable()
+        end
     end
 }
\ No newline at end of file
diff --git a/data/main.lua b/data/main.lua
index 34bc6f6..e36c3f3 100644
--- a/data/main.lua
+++ b/data/main.lua
@@ -2,6 +2,7 @@ require "app"
 require "score"
 require "rooms"
 require "editor"
+require "game"
 
 function mini.init()
     surf_sprites = surf.load("sprites.gif")
@@ -10,6 +11,7 @@ function mini.init()
     pal.trans(0)
 
     rooms.init()
+    shader.init("lynx.glsl")
     editor.enable()
 end
 
diff --git a/data/menu.lua b/data/menu.lua
index 4f538da..ec82811 100644
--- a/data/menu.lua
+++ b/data/menu.lua
@@ -15,6 +15,7 @@ menu = {
 
         menu.option("FILE")
         popup.create("FILE", 1, 8)
+        popup.addOption("FILE", "Play", editor.play)
         popup.addOption("FILE", "Save", function() rooms.save() editor.modified=false end)
         popup.addOption("FILE", "Quit", editor.quit)
 
diff --git a/data/rooms.lua b/data/rooms.lua
index 7c7debf..b680cdf 100644
--- a/data/rooms.lua
+++ b/data/rooms.lua
@@ -47,9 +47,6 @@ rooms = {
 		--surf.save(rooms.surf_background, "data/rooms_background.bin")
 		--surf.save(rooms.surf_foreground, "data/rooms_foreground.bin")
 		--surf.save(rooms.surf_items, "data/rooms_items.bin")
-
-		--shader.init("lynx.glsl")
-		--shader.enable();
 	end,
 
 	save = function()
@@ -104,7 +101,6 @@ rooms = {
 	    	--draw.surf(0, 0, 16, 17, 20, 15, 16, 17)
 		end
 
-		sprites.update()
 		-- Pintem la rejilla
 		--for y=0,12 do draw.line(0,y*8, 160, y*8, 27) end
 		--for x=0,20 do draw.line(x*8, 0, x*8, 104, 27) end
diff --git a/data/rooms_foreground.bin b/data/rooms_foreground.bin
index 8a1f60b..9b4868c 100644
Binary files a/data/rooms_foreground.bin and b/data/rooms_foreground.bin differ
diff --git a/data/score.lua b/data/score.lua
index 9cfa95d..ba4a2d9 100644
--- a/data/score.lua
+++ b/data/score.lua
@@ -1,6 +1,6 @@
 score = {
 
     draw = function()
-        draw.rectf(0,0,160,7,1)
+        draw.rectf(0,0,160,8,1)
     end
 }
diff --git a/data/sprites.gif b/data/sprites.gif
index b1b938d..f6df32e 100644
Binary files a/data/sprites.gif and b/data/sprites.gif differ
diff --git a/data/sprites.lua b/data/sprites.lua
index 59ecd36..6d920bf 100644
--- a/data/sprites.lua
+++ b/data/sprites.lua
@@ -9,14 +9,35 @@ sprites = {
             pos = { x=24, y=15 },
             size= { w=16, h=17 },
             bbo = { left=0, top=0, right=0, bottom=0 },
-            animation = "hero_walk",
+            flipped = false,
+            animation = "hero_stand",
             current_frame = 1,
             current_wait = 1
         }
     end,
 
+    set_animation=function(sprite, animation)
+        if sprite.animation ~= animation then
+            sprite.animation = animation
+            sprite.current_frame = 1
+            sprite.current_wait = 1
+        end
+    end,
+
     update = function()
         sprites.update_sprite(sprites.hero)
+
+        if key.down(key.LEFT) then
+            sprites.hero.flipped = true
+            sprites.set_animation(sprites.hero, "hero_walk")
+            sprites.hero.pos.x = sprites.hero.pos.x - 1
+        elseif key.down(key.RIGHT) then
+            sprites.hero.flipped = false
+            sprites.set_animation(sprites.hero, "hero_walk")
+            sprites.hero.pos.x = sprites.hero.pos.x + 1
+        else
+            sprites.set_animation(sprites.hero, "hero_stand")
+        end
     end,
 
     update_sprite = function(sprite)
@@ -43,6 +64,6 @@ sprites = {
     draw_sprite = function(sprite)
         local cycle = animations[sprite.animation].cycle[sprite.current_frame]
         local frame = animations[sprite.animation].frames[cycle]
-        draw.surf(frame.frame.x, frame.frame.y, frame.frame.w, frame.frame.h, sprite.pos.x, sprite.pos.y, sprite.size.w, sprite.size.h)
+        draw.surf(frame.frame.x, frame.frame.y, frame.frame.w, frame.frame.h, sprite.pos.x, sprite.pos.y, sprite.size.w, sprite.size.h, sprite.flipped)
     end
 }
\ No newline at end of file