diff --git a/data/game.lua b/data/game.lua
index 06cb25e..7015485 100644
--- a/data/game.lua
+++ b/data/game.lua
@@ -175,7 +175,10 @@ function world_update()
         -- Comprovar dispars contra "monstres"
         if viewp:inside(actor.x, actor.y, actor.w, actor.h) and actor~=abad then
             for _, cacau_shot in pairs(cacau.shots()) do
-                if cacau_shot.alive and collision(actor,cacau_shot) then
+                -- if collision(actor,cacau_shot) then print("COLLISION") end
+                -- if actor.enabled then print(actor.name) else print("NOT "..actor.name) end
+                -- if cacau_shot.alive then print("CACAU") end
+                if actor.enabled and cacau_shot.alive and collision(actor,cacau_shot) then
                     if actor.hit ~= nil and not actor.dying then
                         actor:hit()
                         if actor.can_warp then warp.open(actor) end
diff --git a/data/imp.lua b/data/imp.lua
index 68b051e..69a17f9 100644
--- a/data/imp.lua
+++ b/data/imp.lua
@@ -50,7 +50,7 @@ function imp.new(_hab, _x, _y)
        step=0,
        hurting=0,
        jumpfwd=false,
-       step_length=1,
+       step_length=0.6,
        vmove_space=1,
        max_jump_height=24,
        jump_height=0,
@@ -70,6 +70,9 @@ function imp.new(_hab, _x, _y)
        super_cooldown=2000,
        shot_cooldown=500,
        action="",
+       enabled=true,
+       disable_reason="",
+       can_warp=false,
        fight=imp.fight,
        draw=imp.draw,
        hit=imp.hit,
@@ -106,7 +109,7 @@ function imp:draw()
 end
 
 function imp:hit()
-    --
+    print("HIT!")
 end
 
 function imp:direccio( actor )
diff --git a/data/stage1.lua b/data/stage1.lua
index 005d305..2c023be 100644
--- a/data/stage1.lua
+++ b/data/stage1.lua
@@ -132,6 +132,8 @@ function stages.stage1_boss()
         -- actors_in_room_backup_and_remove(stage1_boss_mapa.r0.r,stage1_boss_mapa.r1.r)
         viewp:fixed({l=8,r=44,u=48,d=0})
         stages.boss_loaded = true
+        boss.reason=""
+        boss.enabled=true
         boss:fight()
     end
 end
diff --git a/data/zombie.lua b/data/zombie.lua
index 1d6c81b..0d3e9db 100644
--- a/data/zombie.lua
+++ b/data/zombie.lua
@@ -118,7 +118,7 @@ function zombie:update_hit()
                 self.frame=self.anim[0]
                 self.step=0
                 self.wait=0
-                self.update=caco.update_normal
+                self.update=zombie.update_normal
                 self.dying = false
             end
         end