diff --git a/project/items.js b/project/items.js
index 1c5b4c7f..6b267245 100644
--- a/project/items.js
+++ b/project/items.js
@@ -368,7 +368,7 @@ var items_296f5d02_12fd_4166_a7c1_b5e830c9ee3a =
 		"pickaxe": "core.playSound('pickaxe.mp3');\ncore.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n});",
 		"icePickaxe": "core.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n});",
 		"snow": "core.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n});",
-		"bigKey": "core.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n});",
+		"bigKey": "(function () {\n\tvar actions = core.status.event.ui.map(function (id) {\n\t\tvar block = core.status.thisMap.blocks[id];\n\t\treturn { \"type\": \"openDoor\", \"loc\": [block.x, block.y], \"async\": true };\n\t});\n\tactions.push({ \"type\": \"waitAsync\" });\n\tactions.push({ \"type\": \"tip\", \"text\": core.material.items[itemId].name + \"使用成功\" });\n\tcore.insertAction(actions);\n})();",
 		"bomb": "core.playSound('bomb.mp3');\ncore.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n\tcore.events.afterUseBomb();\n});",
 		"hammer": "core.playSound('bomb.mp3');\ncore.removeBlockByIds(core.status.floorId, core.status.event.ui);\ncore.drawMap(core.status.floorId, function () {\n\tcore.drawTip(core.material.items[itemId].name + '使用成功');\n\tcore.events.afterUseBomb();\n});",
 		"centerFly": "core.playSound('centerFly.mp3');\ncore.clearMap('hero');\ncore.setHeroLoc('x', core.bigmap.width-1-core.getHeroLoc('x'));\ncore.setHeroLoc('y', core.bigmap.height-1-core.getHeroLoc('y'));\ncore.drawHero();\ncore.drawTip(core.material.items[itemId].name + '使用成功');",
@@ -402,7 +402,7 @@ var items_296f5d02_12fd_4166_a7c1_b5e830c9ee3a =
 		"upFly": "(function() {\n\tvar floorId = core.status.floorId, index = core.floorIds.indexOf(floorId);\n\tif (index<core.floorIds.length-1) {\n\t\tvar toId = core.floorIds[index+1], toX = core.getHeroLoc('x'), toY = core.getHeroLoc('y');\n\t\tvar mw = core.floors[toId].width, mh = core.floors[toId].height;\n\t\tif (toX>=0 && toX<mw && toY>=0 && toY<mh && core.getBlock(toX, toY, toId)==null) {\n\t\t\tcore.status.event.ui = {'id': toId, 'x': toX, 'y': toY};\n\t\t\treturn true;\n\t\t}\n\t}\n\treturn false;\n})();",
 		"downFly": "(function() {\n\tvar floorId = core.status.floorId, index = core.floorIds.indexOf(floorId);\n\tif (index>0) {\n\t\tvar toId = core.floorIds[index-1], toX = core.getHeroLoc('x'), toY = core.getHeroLoc('y');\n\t\tvar mw = core.floors[toId].width, mh = core.floors[toId].height;\n\t\tif (toX>=0 && toX<mw && toY>=0 && toY<mh && core.getBlock(toX, toY, toId)==null) {\n\t\t\tcore.status.event.ui = {'id': toId, 'x': toX, 'y': toY};\n\t\t\treturn true;\n\t\t}\n\t}\n\treturn false;\n})();",
 		"snow": "(function () {\n\tvar ids = [], id2s = [];\n\tfor (var i in core.status.thisMap.blocks) {\n\t\tvar block = core.status.thisMap.blocks[i];\n\t\tif (!block.disable && block.event.id == 'lava' && core.nearHero(block.x, block.y)) {\n\t\t\tif (core.flags.snowFourDirections || (block.x == core.nextX() && block.y == core.nextY()))\n\t\t\t\tids.push(i);\n\t\t\telse id2s.push(i);\n\t\t}\n\t}\n\tif (ids.length>0) {\n\t\tcore.status.event.ui = ids;\n\t\treturn true;\n\t}\n\tif (id2s.length==1) {\n\t\tcore.status.event.ui = id2s;\n\t\treturn true;\n\t}\n\treturn false;\n})();",
-		"bigKey": "(function() {\n\tvar able=false, ids = [];\n\tfor (var i in core.status.thisMap.blocks) {\n\t\tvar block = core.status.thisMap.blocks[i];\n\t\tif (!block.disable && block.event.id == 'yellowDoor') {\n\t\t\tids.push(i);\n\t\t}\n\t}\n\tif (ids.length>0) {\n\t\tcore.status.event.ui = ids;\n\t\table=true;\n\t}\n\treturn able;\n})();",
+		"bigKey": "(function () {\n\tvar able = false,\n\t\tids = [];\n\tfor (var i in core.status.thisMap.blocks) {\n\t\tvar block = core.status.thisMap.blocks[i];\n\t\tif (!block.disable && block.event.id == 'yellowDoor') {\n\t\t\tids.push(i);\n\t\t}\n\t}\n\tif (ids.length > 0) {\n\t\tcore.status.event.ui = ids;\n\t\table = true;\n\t}\n\treturn able;\n})();",
 		"poisonWine": "core.hasFlag('poison');",
 		"weakWine": "core.hasFlag('weak');",
 		"curseWine": "core.hasFlag('curse');",