diff --git a/libs/actions.js b/libs/actions.js
index 48601e6f..17809fd5 100644
--- a/libs/actions.js
+++ b/libs/actions.js
@@ -1389,15 +1389,21 @@ actions.prototype.clickSwitchs = function (x,y) {
                 core.ui.drawSwitchs();
                 break;
             case 4:
+                core.flags.displayCritical=!core.flags.displayCritical;
+                core.updateFg();
+                core.setLocalStorage('critical', core.flags.displayCritical);
+                core.ui.drawSwitchs();
+                break;
+            case 5:
                 core.flags.displayExtraDamage=!core.flags.displayExtraDamage;
                 core.updateFg();
                 core.setLocalStorage('extraDamage', core.flags.displayExtraDamage);
                 core.ui.drawSwitchs();
                 break;
-            case 5:
+            case 6:
                 window.open(core.firstData.name+".zip", "_blank");
                 break;
-            case 6:
+            case 7:
                 core.status.event.selection=0;
                 core.ui.drawSettings();
                 break;
diff --git a/libs/control.js b/libs/control.js
index f51c1133..85c001db 100644
--- a/libs/control.js
+++ b/libs/control.js
@@ -1252,7 +1252,7 @@ control.prototype.updateFg = function () {
     if (!core.hasItem('book')) return;
     core.setFont('fg', "bold 11px Arial");
     var hero_hp = core.status.hero.hp;
-    if (core.flags.displayEnemyDamage) {
+    if (core.flags.displayEnemyDamage || core.flags.displayCritical) {
         core.canvas.fg.textAlign = 'left';
         for (var b = 0; b < mapBlocks.length; b++) {
             var x = mapBlocks[b].x, y = mapBlocks[b].y;
@@ -1271,31 +1271,46 @@ control.prototype.updateFg = function () {
 
                 var id = mapBlocks[b].event.id;
 
-                var damage = core.enemys.getDamage(id);
-                var color = '#000000';
+                if (core.flags.displayEnemyDamage) {
+                    var damage = core.enemys.getDamage(id);
+                    var color = '#000000';
 
-                if (damage == null) {
-                    damage = "???";
-                    color = '#FF0000';
-                }
-                else {
-                    if (damage <= 0) color = '#00FF00';
-                    else if (damage < hero_hp / 3) color = '#FFFFFF';
-                    else if (damage < hero_hp * 2 / 3) color = '#FFFF00';
-                    else if (damage < hero_hp) color = '#FF7F00';
-                    else color = '#FF0000';
+                    if (damage == null) {
+                        damage = "???";
+                        color = '#FF0000';
+                    }
+                    else {
+                        if (damage <= 0) color = '#00FF00';
+                        else if (damage < hero_hp / 3) color = '#FFFFFF';
+                        else if (damage < hero_hp * 2 / 3) color = '#FFFF00';
+                        else if (damage < hero_hp) color = '#FF7F00';
+                        else color = '#FF0000';
 
-                    damage = core.formatBigNumber(damage);
+                        damage = core.formatBigNumber(damage);
+                    }
+
+                    core.setFillStyle('fg', '#000000');
+                    core.canvas.fg.fillText(damage, 32 * x + 2, 32 * (y + 1) - 2);
+                    core.canvas.fg.fillText(damage, 32 * x, 32 * (y + 1) - 2);
+                    core.canvas.fg.fillText(damage, 32 * x + 2, 32 * (y + 1));
+                    core.canvas.fg.fillText(damage, 32 * x, 32 * (y + 1));
+
+                    core.setFillStyle('fg', color);
+                    core.canvas.fg.fillText(damage, 32 * x + 1, 32 * (y + 1) - 1);
                 }
 
-                core.setFillStyle('fg', '#000000');
-                core.canvas.fg.fillText(damage, 32 * x + 2, 32 * (y + 1) - 2);
-                core.canvas.fg.fillText(damage, 32 * x, 32 * (y + 1) - 2);
-                core.canvas.fg.fillText(damage, 32 * x + 2, 32 * (y + 1));
-                core.canvas.fg.fillText(damage, 32 * x, 32 * (y + 1));
-
-                core.setFillStyle('fg', color);
-                core.canvas.fg.fillText(damage, 32 * x + 1, 32 * (y + 1) - 1);
+                // 临界显伤
+                if (core.flags.displayCritical) {
+                    var critical = core.formatBigNumber(core.enemys.getCritical(id));
+                    if (critical == '???') critical = '?';
+                    core.setFillStyle('fg', '#000000');
+                    core.canvas.fg.fillText(critical, 32 * x + 2, 32 * (y + 1) - 2 - 10);
+                    core.canvas.fg.fillText(critical, 32 * x, 32 * (y + 1) - 2 - 10);
+                    core.canvas.fg.fillText(critical, 32 * x + 2, 32 * (y + 1) - 10);
+                    core.canvas.fg.fillText(critical, 32 * x, 32 * (y + 1) - 10);
+                    core.setFillStyle('fg', '#FFFFFF');
+                    core.canvas.fg.fillText(critical, 32 * x + 1, 32 * (y + 1) - 1 - 10);
+                }
 
             }
         }
diff --git a/libs/core.js b/libs/core.js
index d88d10f2..a01080a5 100644
--- a/libs/core.js
+++ b/libs/core.js
@@ -268,6 +268,7 @@ core.prototype.init = function (coreData, callback) {
     // switchs
     core.flags.battleAnimate = core.getLocalStorage('battleAnimate', core.flags.battleAnimate);
     core.flags.displayEnemyDamage = core.getLocalStorage('enemyDamage', core.flags.displayEnemyDamage);
+    core.flags.displayCritical = core.getLocalStorage('critical', core.flags.displayCritical);
     core.flags.displayExtraDamage = core.getLocalStorage('extraDamage', core.flags.displayExtraDamage);
 
     core.material.ground = new Image();
diff --git a/libs/ui.js b/libs/ui.js
index 4c3eee5e..fb1d43ef 100644
--- a/libs/ui.js
+++ b/libs/ui.js
@@ -734,6 +734,7 @@ ui.prototype.drawSwitchs = function() {
         "背景音效："+(core.musicStatus.soundStatus ? "[ON]" : "[OFF]"),
         "战斗动画： "+(core.flags.battleAnimate ? "[ON]" : "[OFF]"),
         "怪物显伤： "+(core.flags.displayEnemyDamage ? "[ON]" : "[OFF]"),
+        "临界显伤： "+(core.flags.displayCritical ? "[ON]" : "[OFF]"),
         "领域显伤： "+(core.flags.displayExtraDamage ? "[ON]" : "[OFF]"),
         "下载离线版本",
         "返回主菜单"