diff --git a/data/abad.lua b/data/abad.lua
index 54b2735..5b8e417 100644
--- a/data/abad.lua
+++ b/data/abad.lua
@@ -1,9 +1,6 @@
 -- TO DO: Afegir un contador per a saber quan de temps está parat el abad per a traure al Imp
 
-local arcade_config = require("arcade_config")
-o2aX = arcade_config.org2arc_escala
-cxr = arcade_config.character_per_row-1
-cxr2 = arcade_config.character_per_row_base2
+-- local arcade_config = require("arcade_config")
 cw = arcade_config.character_width
 ch = arcade_config.character_height
 
@@ -53,6 +50,8 @@ function abad_init()
            vmove_space=1,
            max_jump_height=24,
            jump_height=0,
+           jump_in_half_block=0,
+           jump_in_half_block_used = false,
            max_shoot_cooldown=24,
            shoot_cooldown=25,
            anim={0,1,0,2},
@@ -147,9 +146,90 @@ function abad_shot_cacau ()
     cacau.init(abad.hab,abad.x+8,abad.y+8,abad.flip)
 end
 
-function abad_land () 
-    -- abad.x
-    -- abad.y
+function abad_jump()
+    local vspace = abad.vmove_space
+    -- Els dos punts de dalt de l'abad
+    local x1_check = abad.x+abad.bb.x
+    local x2_check = abad.x+abad.bb.x+abad.bb.w
+    local y_check = abad.y-vspace
+    
+    -- Comprovar on està pegant
+    local tile1_hit_type= arc_check_tile(x1_check, y_check )
+    local tile2_hit_type= arc_check_tile(x2_check, y_check)
+    local not_block_tile = tile1_hit_type ~= tiletype.block and tile2_hit_type ~= tiletype.block
+    local switch_tile = tile1_hit_type == tiletype.switch or tile2_hit_type == tiletype.switch
+-- print("JUMP > "..x1_check..", "..x2_check..", "..y_check)
+-- print("T1= "..tile1_hit_type.." / T2= "..tile2_hit_type)
+-- local msg = "BLOCK TILE HITTED"
+-- if not_block_tile then msg="not block" end
+-- print(msg)
+    -- Fer l'acció que correspon
+    if not_block_tile then
+        if switch_tile then
+            -- Executar el switch
+            switches.start(abad.hab,1+xx+yy*12)
+        else
+            abad.y=abad.y-vspace
+        end
+    else
+        local tile1_hit = arc_get_tile(x1_check, y_check )
+        local tile2_hit = arc_get_tile(x2_check, y_check)
+        local half_block1 = mapa_is_half_block_tile(tile1_hit)
+        local half_block2 = mapa_is_half_block_tile(tile2_hit)
+        local full_block1 = tile1_hit_type == tiletype.block and not half_block1
+        local full_block2 = tile2_hit_type == tiletype.block and not half_block2
+        local full_block = full_block1 and full_block2
+        local half_block = half_block1 or half_block2
+-- print("BLOCK TILE")
+-- msg = tile1_hit.." "..tile2_hit.." >> "
+-- if half_block1 then msg= msg.."half_block1 " end
+-- if half_block2 then msg= msg.."half_block2 " end
+-- if full_block1 then msg= msg.."full_block1 " end
+-- if full_block2 then msg= msg.."full_block2 " end
+-- if full_block  then msg= msg.."full_block " end
+-- if half_block  then msg= msg.."half_block " end
+-- if abad.jump_in_half_block_used then msg= msg.."jump_in_half_block_used " end
+-- print(msg)
+        -- Si ninguno dels tiles tocats es un block complet
+        -- i almenys un dels tiles tocats es mig tile
+        -- permetre continuar en el salt
+        if not full_block and half_block then
+            if abad.jump_in_half_block==0 and not abad.jump_in_half_block_used then
+                abad.jump_in_half_block = arcade_config.tiles_height>>1
+            end
+            if abad.jump_in_half_block>0 then
+                abad.y=abad.y-vspace
+                abad.jump_in_half_block = abad.jump_in_half_block-1
+            end
+        end
+    end
+    abad.jump_height = abad.jump_height+1
+    abad.jump_in_half_block_used = true
+end
+
+function abad_land ()
+    -- Els dos punts de baix de l'abad
+    local x1_check = abad.x+abad.bb.x
+    local x2_check = abad.x+abad.bb.x+abad.bb.w
+    local y_check = abad.y+abad.bb.h
+    
+    -- Comprovar on està aterrant
+    local tile1_hit= arc_check_tile(x1_check, y_check )
+    local tile2_hit= arc_check_tile(x2_check, y_check)
+    local floor_tile = tile1_hit>=tiletype.half or tile2_hit>=tiletype.half
+    
+    -- Encara que siga un tile de piso s'ha de comprovar que 
+    -- la y es un múltiple de l'alt dels tiles
+    local over_tile = (y_check & 0xF) == 0 
+    
+    local can_land = floor_tile and over_tile
+    
+    if can_land then
+        abad.jump_in_half_block_used = false
+        abad.jump_height = 0 
+    end
+    
+    return can_land
 end
 
 function abad_advance()
@@ -295,7 +375,6 @@ function abad_state_walking()
 end
 
 function abad_state_jumping()
-    local vspace = abad.vmove_space
     local step_length = abad.step_length
     abad.frame=3
     abad.wait=abad.wait+1
@@ -303,23 +382,13 @@ function abad_state_jumping()
     abad.wait=0
 
     if abad.jump_height<abad.max_jump_height then
-            if arc_check_tile(abad.x+step_length,abad.y-vspace)~=tiletype.block then
-                 if arc_check_tile(abad.x+abad.bb.x+abad.bb.w,abad.y-vspace)~=tiletype.block then
-                    if arc_check_tile(abad.x+abad.bb.x,abad.y-vspace)==tiletype.switch then
-                        -- Executar el switch
-                        switches.start(abad.hab,1+xx+yy*12)
-                    else
-                        abad.jump_height = abad.jump_height+1
-                    end
-                end
-            end
+        abad_jump()
     else
         -- Canviar a mode caure
         abad.update=abad_state_falling
         abad.jump=sound.play(audio_abad_fall)
     end
     abad.step=abad.step+1
-    abad.y=abad.y-vspace
 
     if abad.jumpfwd then abad_advance() end
 
@@ -349,16 +418,8 @@ function abad_state_falling()
         --     abad.y=0
         -- end
     end
-
-    local x_check = abad.x+abad.bb.x
-    local y_check = abad.y+abad.bb.h
-    local curr_tile = arc_check_tile(x_check,y_check)
-    local next_tile = arc_check_tile(x_check+abad.bb.w,y_check)
     
-    local check_floor_curr_tile = curr_tile>=tiletype.half
-    local check_floor_next_tile = next_tile>=tiletype.half
-    
-    if check_floor_curr_tile or check_floor_next_tile then
+    if abad_land() then
         abad.update=abad_state_normal
         return
     end    
diff --git a/data/game.lua b/data/game.lua
index 5d75192..7883cd2 100644
--- a/data/game.lua
+++ b/data/game.lua
@@ -1,3 +1,5 @@
+arcade_config = require("arcade_config")
+
 require "fps"
 require "mapa"
 require "abad"
@@ -5,7 +7,6 @@ require "cacau"
 
 local viewport= require("viewport")
 
-local arcade_config = require("arcade_config")
 local tile_w = arcade_config.tiles_width
 local tile_h = arcade_config.tiles_height
 local res_w  = arcade_config.resolucion.width
@@ -146,9 +147,9 @@ function update_game()
     msg_print(0,42," JH= "..abad.jump_height,true)
     
     -- view_coord(abad.x+8, abad.y+0, 16, 32, 6)
-    --- view_coord(abad.x+abad.bb.x,  abad.y+abad.bb.h, 2, 2, 4)
-    --- view_coord(abad.x+abad.bb.x+abad.bb.w, abad.y+abad.bb.h, 2, 2, 2)
-    --- view_coord(abad.x, abad.y, 2, 2, 3)
+    -- view_coord(abad.x+abad.bb.x,  abad.y+abad.bb.h, 2, 2, 4)
+    -- view_coord(abad.x+abad.bb.x+abad.bb.w, abad.y+abad.bb.h, 2, 2, 2)
+    -- view_coord(abad.x, abad.y, 2, 2, 3)
     
     if key.press(key.T) then 
         view_tile_id = not view_tile_id 
diff --git a/data/mapa.lua b/data/mapa.lua
index 29746c9..52ec6dc 100644
--- a/data/mapa.lua
+++ b/data/mapa.lua
@@ -5,6 +5,18 @@ local arcade_config = require("arcade_config")
 tiletype={void=0,nonpc=1,stair=2,switch=3,half=4,block=5}
 mapa.wait=0
 mapa.step=0
+
+half_block_set={ 
+    [20] = true, [21] = true, 
+    [22] = true, [28] = true, 
+    [29] = true, [36] = true, 
+    [37] = true, [44] = true, 
+    [45] = true}
+
+function mapa_is_half_block_tile (ntile)
+    return half_block_set[ntile]==true
+end
+
 function mapa_do_backup()
     mapa_backup={}
     for i=1,#mapa do
@@ -181,7 +193,7 @@ function arc_mapa_get_map_coords ( x, y )
 	return calc_room, calc_col, calc_row
 end
 
-function arc_check_tile(world_x,world_y)
+function arc_get_tile(world_x,world_y)
     -- local xx=math.min(11,math.max(0,math.floor(x/8)))
     -- local yy=math.min(5,math.max(0,math.floor(y/8)))
     --rect(xx*8,yy*8,xx*8+8,yy*8+8,3)
@@ -190,8 +202,16 @@ function arc_check_tile(world_x,world_y)
     --             switch=3 / half=4 / block=5    
     
     local hab, xx, yy = arc_mapa_get_map_coords(world_x, world_y)
+-- print("ARC_GT= "..hab.."> "..x..", "..y.." => "..tile)
     local tile=mapa_get_tile(hab,xx,yy)
--- print("ARC_CT= "..hab.."> "..x..", "..y.." => "..tile)
+    return tile
+end
+
+function arc_check_tile(world_x,world_y)
+    -- tiletype => void=0 / nonpc=1 / stair=2 / 
+    --             switch=3 / half=4 / block=5    
+    
+    local tile=arc_get_tile(world_x, world_y)
     if tile<8 then
         return tiletype.half
     elseif tile<15 then