diff --git a/data/gfx/nemesio.gif b/data/gfx/nemesio.gif
new file mode 100644
index 0000000..b7e2eca
Binary files /dev/null and b/data/gfx/nemesio.gif differ
diff --git a/data/maps/rooms_background.gif b/data/maps/rooms_background.gif
index 3f2282d..4165345 100644
Binary files a/data/maps/rooms_background.gif and b/data/maps/rooms_background.gif differ
diff --git a/data/maps/rooms_items.gif b/data/maps/rooms_items.gif
index 6af960e..4149f4a 100644
Binary files a/data/maps/rooms_items.gif and b/data/maps/rooms_items.gif differ
diff --git a/data/modules/animations.lua b/data/modules/animations.lua
index c68c2e4..5f81ee7 100644
--- a/data/modules/animations.lua
+++ b/data/modules/animations.lua
@@ -187,4 +187,11 @@ animations = {
             { frame={x=0,y=9,w=16,h=6}, wait=100 }
         }
     },
+    ["nemesio"] = {
+        cycle = {1},
+        loop = false,
+        frames = {
+            { frame={x=0,y=0,w=16,h=16}, wait=100 }
+        }
+    },
 }
\ No newline at end of file
diff --git a/data/modules/ia/nemesio.lua b/data/modules/ia/nemesio.lua
new file mode 100644
index 0000000..56113f6
--- /dev/null
+++ b/data/modules/ia/nemesio.lua
@@ -0,0 +1,35 @@
+require ":utils.util"
+
+function ia.update_nemesio(spr)
+
+    spr.timer = spr.timer + 1
+
+    if spr.state == templates.ALIVE then
+        if spr.timer==100 then
+            spr.timer=0
+            spr.state = templates.DYING
+            local target = {x=sprites.hero.pos.x-spr.pos.x, y=sprites.hero.pos.y-spr.pos.y}
+            spr.advance = util.normalize(target)
+            spr.fpos = {x=spr.pos.x, y=spr.pos.y}
+        end
+
+        if sprites.hero.state == templates.ALIVE then
+            local x1,y1,w1,h1 = util.aabb(spr) -- El meu aabb
+            local x2,y2,w2,h2 = util.aabb(sprites.hero) -- el aabb del heroi
+            -- Si toca al heroi...
+            if util.check_aabb_collision(x1,y1,w1,h1, x2,y2,w2,h2) then
+                sprites.hero.hit()
+            end
+        end
+
+    elseif spr.state == templates.DYING then
+        spr.fpos.x = spr.fpos.x + spr.advance.x
+        spr.fpos.y = spr.fpos.y + spr.advance.y
+        spr.pos.x = math.floor(spr.fpos.x)
+        spr.pos.y = math.floor(spr.fpos.y)
+        if spr.timer == 32 then
+            spr.timer = 0
+            spr.state = templates.ALIVE
+        end
+    end
+end
diff --git a/data/modules/items.lua b/data/modules/items.lua
index a6c12d6..4be19a1 100644
--- a/data/modules/items.lua
+++ b/data/modules/items.lua
@@ -14,4 +14,5 @@ items = {
     { name="sucubo 25",    label="sucubo25", visual={x=0,  y=64, w=16, h=16} },
     { name="sucubo 50",    label="sucubo50", visual={x=0,  y=64, w=16, h=16} },
     { name="sucubo 75",    label="sucubo75", visual={x=0,  y=64, w=16, h=16} },
+    { name="nemesio",      label="nemesio",  visual={x=16, y=80, w=16, h=16} },
 }
diff --git a/data/modules/templates.lua b/data/modules/templates.lua
index af3e671..0e8d610 100644
--- a/data/modules/templates.lua
+++ b/data/modules/templates.lua
@@ -158,6 +158,23 @@ function me.create(type, options)
             ay = 1,
             ia = ia.update_palo
         }
+    elseif key == "nemesio" then
+        sprite = {
+            type = key,
+            pos = options.pos,--{ x=100, y=4*12*8+71 },
+            size = { w=16,h=16 },
+            bbo = { left=3, top=2, right=3, bottom=0 },
+            current_frame = 1,
+            current_wait = 1,
+            flipped = options.flipped,
+            surf = surf.load("gfx/nemesio.gif"),
+            animation = "nemesio",
+            state = me.ALIVE,
+            timer = 0,
+            enemy = true,
+            room = options.room,
+            ia = ia.update_nemesio
+        }
     else
         error("Template not recognized")
     end
diff --git a/data/utils/util.lua b/data/utils/util.lua
index 7274fc5..e270ef9 100644
--- a/data/utils/util.lua
+++ b/data/utils/util.lua
@@ -27,3 +27,10 @@ function util.luminance(r, g, b)
     return (0.2126*r + 0.7152*g + 0.0722*b)/255
 end
 
+function util.normalize(v)
+    local magnitud = math.sqrt(v.x * v.x + v.y * v.y)
+    if magnitud == 0 then
+        return {x = 0, y = 0} -- evita división por cero
+    end
+    return {x = v.x / magnitud, y = v.y / magnitud}
+end