diff --git a/LANG/lang_en.lua b/LANG/lang_en.lua
index 3f026ce4..63c590be 100644
--- a/LANG/lang_en.lua
+++ b/LANG/lang_en.lua
@@ -50,12 +50,15 @@ return{
 	ranks={"D","C","B","A","S"},
 
 	needRestart="Effective after restart",
+
 	exportSuccess="Export successfully",
 	importSuccess="Import successfully",
 	dataCorrupted="Data corrupted",
+
 	VKTchW="Touch Weight",
 	VKOrgW="Origin Weight",
 	VKCurW="Cur. Pos. Weight",
+
 	noScore="No Scores Yet",
 	highScore="Personal Bests",
 	newRecord="New Record!",
@@ -64,14 +67,18 @@ return{
 	getVersionFail="Unable to detect a new version",
 	versionIsNew="You are now on the latest version.",
 	versionIsOld="Version $1 is available now!",
-	registerSuccessed="Registration successed!",
-	registerFailed="Registration failed",
+
 	netErrorCode="Network error code",
 	jsonError="Json error",
+
 	noUsername="Please enter your username",
+	wrongCode="Please enter invitation code",
 	wrongEmail="Wrong email address",
 	noPassword="Please enter your password",
 	diffPassword="Passwords don't match",
+	registerSuccessed="Registration successed!",
+	registerFailed="Registration failed",
+
 	errorMsg="An error has occurred and Techmino needs to restart.\nError info has been created, and you can send it to the author.",
 
 	acts={
diff --git a/LANG/lang_fr.lua b/LANG/lang_fr.lua
index 9889213a..d762d36f 100644
--- a/LANG/lang_fr.lua
+++ b/LANG/lang_fr.lua
@@ -52,25 +52,35 @@ return{
 	getRank="Rang: ",
 
 	needRestart="Fonctionnera dès la prochaine partie",
+
 	-- exportSuccess="Export successfully",
 	-- importSuccess="Import successfully",
 	dataCorrupted="Données corrompues",
+
 	VKTchW="Poids du toucher",
 	VKOrgW="Pois d'origine",
 	VKCurW="Pois de la pos. du cur.",
+
 	noScore="Aucun score",
 	highScore="Records personnels",
 	newRecord="Nouveau record !",
+
 	getNoticeFail="Echec de l'obtention de la notice",
 	getVersionFail="Echec d'obtention de la dernière version",
 	versionIsNew="Vous êtes sur la dernière version",
 	versionIsOld="La version $1 est disponible !",
-	registerSuccessed="Enregistré avec succès !",
-	registerFailed="Erreur d'enregistrement",
+
 	netErrorCode="Code d'erreur réseau",
+	-- jsonError="Json error",
+
 	noUsername="Entrez votre nom d'utilisateur",
+	-- wrongCode="Please enter invitation code",
+	-- wrongEmail="Wrong email address",
 	noPassword="Entrez votre mot de passe",
 	diffPassword="Les mots de passe ne se correspondent pas",
+	registerSuccessed="Enregistré avec succès !",
+	registerFailed="Erreur d'enregistrement",
+
 	errorMsg="Une erreur est survenue et Techmino doit redémarrer.\nDes informations concernant l'erreur ont été créées, et vous pouvez les envoyer au créateur.",
 
 	acts={
diff --git a/LANG/lang_sp.lua b/LANG/lang_sp.lua
index 9acd3f84..f637af1e 100644
--- a/LANG/lang_sp.lua
+++ b/LANG/lang_sp.lua
@@ -52,25 +52,36 @@ return{
 	getRank="Rango obtenido:",
 
 	needRestart="Reinicia Techmino para que los cambios tengan efecto.",
+
 	-- exportSuccess="Export successfully",
 	-- importSuccess="Import successfully",
 	dataCorrupted="Los datos están corruptos.",
+
 	VKTchW="Sens. al toque",
 	VKOrgW="Sens. al origen",
 	VKCurW="Sens. Cur. Pos.",
+
 	noScore="Sin puntajes aún.",
 	highScore="Mejores puntajes",
 	newRecord="¡Nuevo Récord!",
+
 	getNoticeFail="Error al buscar novedades.",
 	getVersionFail="Error al buscar nuevas versiones.",
 	versionIsNew="Esta es la versión más reciente disponible.",
 	versionIsOld="¡Está disponible la nueva versión $1!",
-	registerSuccessed="¡Registro exitoso!",
-	registerFailed="Registro fallido.",
+
 	netErrorCode="Código de error de conexión",
+	-- jsonError="Json error",
+
 	noUsername="Por favor ingresa un nombre de usuario",
+
+	-- wrongCode="Please enter invitation code",
+	-- wrongEmail="Wrong email address",
 	noPassword="Por favor ingresa una contraseña",
 	diffPassword="Las contraseñas no coinciden",
+	registerSuccessed="¡Registro exitoso!",
+	registerFailed="Registro fallido.",
+
 	errorMsg="Ha ocurrido un error y Techmino necesita reiniciarse.\nSe creó un registro de error, puedes enviarlo al autor.",
 
 	acts={
diff --git a/LANG/lang_yygq.lua b/LANG/lang_yygq.lua
index c0321a3e..37088c26 100644
--- a/LANG/lang_yygq.lua
+++ b/LANG/lang_yygq.lua
@@ -25,10 +25,11 @@ return{
 	finesse_ap="您",
 	finesse_fc="全连",
 
-	noUsername="账号填不来?",
-	wrongEmail="邮箱不会填?",
-	noPassword="密码填不来?",
-	diffPassword="账号密码都填不来?",
+	noUsername="别闹。",
+	wrongCode="有人邀请你注册了?",
+	wrongEmail="别乱输。",
+	noPassword="注册会不会?",
+	diffPassword="字不认识?",
 
 	ranks={"菜","可","好","强","您"},
 
diff --git a/LANG/lang_zh.lua b/LANG/lang_zh.lua
index 723e2e3b..79be2be6 100644
--- a/LANG/lang_zh.lua
+++ b/LANG/lang_zh.lua
@@ -51,27 +51,35 @@ return{
 	ranks={"D","C","B","A","S"},
 
 	needRestart="重新开始以生效",
+
 	exportSuccess="导出成功",
 	importSuccess="导入成功",
 	dataCorrupted="数据损坏",
+
 	VKTchW="触摸点权重",
 	VKOrgW="原始点权重",
 	VKCurW="当前点权重",
+
 	noScore="暂无成绩",
 	highScore="最佳成绩",
 	newRecord="打破纪录",
+
 	getNoticeFail="拉取公告失败",
 	getVersionFail="检测新版本失败",
 	versionIsNew="游戏已是最新版本",
 	versionIsOld="最新版本$1可以下载了!",
-	registerSuccessed="注册成功!",
-	registerFailed="注册失败",
+
 	netErrorCode="网络错误码",
 	jsonError="json错误",
+
 	noUsername="请填写用户名",
+	wrongCode="请填写邀请码",
 	wrongEmail="邮箱格式错误",
 	noPassword="请填写密码",
 	diffPassword="两次密码不一致",
+	registerSuccessed="注册成功!",
+	registerFailed="注册失败",
+
 	errorMsg="Techmino遭受了雷击,需要重新启动.\n我们已收集了一些错误信息,你可以向作者进行反馈.",
 
 	acts={
diff --git a/parts/scenes/login.lua b/parts/scenes/login.lua
index d3ccd5ea..0e763db5 100644
--- a/parts/scenes/login.lua
+++ b/parts/scenes/login.lua
@@ -7,24 +7,27 @@ function keyDown.login(key)
 		local password2=WIDGET.active.password2.value
 		if #username==0 then
 			LOG.print(text.noUsername)return
-		elseif not email:match("^[a-zA-Z0-9_-]+@[a-zA-Z0-9_-]+(\\.[a-zA-Z0-9_-]+)+$")then
+		elseif not email:match("^[a-zA-Z0-9_]+@[a-zA-Z0-9_-]+%.[a-zA-Z0-9_]+$")then
 			LOG.print(text.wrongEmail)return
+		elseif #code~=12 then
+			LOG.print(text.wrongCode)return
 		elseif #password==0 or #password2==0 then
 			LOG.print(text.noPassword)return
 		elseif password~=password2 then
 			LOG.print(text.diffPassword)return
 		end
+		local data=urlencode.encode({
+			username=username,
+			email=email,
+			password=password,
+			code=code,
+		})
 		httpRequest(
 			TICK.httpREQ_register,
 			"api/account/register",
 			"POST",
-			{["Content-Type"]="application/json"},
-			json.encode({
-				username=username,
-				email=email,
-				password=password,
-				code=code,
-			})
+			{["Content-Type"]="application/x-www-form-urlencoded"},
+			data
 		)
 	elseif key=="escape"then
 		SCN.back()
diff --git a/parts/scenes/main.lua b/parts/scenes/main.lua
index 257d556f..c6c36b9e 100644
--- a/parts/scenes/main.lua
+++ b/parts/scenes/main.lua
@@ -35,7 +35,7 @@ end
 
 WIDGET.init("main",{
 	WIDGET.newButton({name="offline",	x=150,y=220,w=200,h=140,color="lRed",	font=40,code=WIDGET.lnk.goScene("mode")}),
-	WIDGET.newButton({name="online",	x=370,y=220,w=200,h=140,color="lCyan",	font=40,code=WIDGET.lnk.goScene(LOGIN and"netgame"or"login"),hide=function()return not LOGIN end}),
+	WIDGET.newButton({name="online",	x=370,y=220,w=200,h=140,color="lCyan",	font=40,code=WIDGET.lnk.goScene(LOGIN and"netgame"or"login")}),
 	WIDGET.newButton({name="custom",	x=590,y=220,w=200,h=140,color="lBlue",	font=45,code=WIDGET.lnk.goScene("customGame"),hide=function()return not RANKS.marathon_normal end}),
 	WIDGET.newButton({name="setting",	x=150,y=380,w=200,h=140,color="lOrange",font=40,code=WIDGET.lnk.goScene("setting_game")}),
 	WIDGET.newButton({name="stat",		x=370,y=380,w=200,h=140,color="lGreen",	font=35,code=WIDGET.lnk.goScene("stat")}),