diff --git a/www/js/language.js b/www/js/language.js
index 2e7a775..d3e019c 100644
--- a/www/js/language.js
+++ b/www/js/language.js
@@ -33,6 +33,10 @@ LANGUAGE.Terms = {
     guide: new LANGUAGE.Term( "Guide", "ガイド" ),
     about: new LANGUAGE.Term( "About", "概要" ),
 
+    account: new LANGUAGE.Term( "Account", "アカウント" ),
+    logout: new LANGUAGE.Term( "Logout", " ログアウト" ),
+    extras: new LANGUAGE.Term( "Extras", " お負け" ),
+
     turn: new LANGUAGE.Term( "Turn", "手番数" ),
     turns: new LANGUAGE.Term( "Turns", "手番数" ),
     viewers: new LANGUAGE.Term( "Viewers", "観戦者" ),
@@ -60,6 +64,8 @@ LANGUAGE.Terms = {
     accept: new LANGUAGE.Term( "Accept", "受け入れ" ),
     decline: new LANGUAGE.Term( "Decline", "断る" ),
     
+    play: new LANGUAGE.Term( "Play", "遣る" ),
+
     check: new LANGUAGE.Term( "Check", "王手" ),
     checkmate: new LANGUAGE.Term( "Checkmate", "詰み" ),
 
diff --git a/www/js/scene.js b/www/js/scene.js
index c30989e..043992d 100644
--- a/www/js/scene.js
+++ b/www/js/scene.js
@@ -577,7 +577,7 @@ const SCENES = {
                 UI.button(LANG("mirror"), () => { INTERFACE.mirror(); }),
             ];
             if(data.mode == INTERFACE.Mode.Review) {
-                buttons_top.push(UI.button("Play", () => {
+                buttons_top.push(UI.button(LANG("play"), () => {
                     LOAD(SCENES.GamePractice, {
                         history: INTERFACE_DATA.history,
                         turn: INTERFACE_DATA.replay_turn,
diff --git a/www/js/ui.js b/www/js/ui.js
index a59f20d..3540e81 100644
--- a/www/js/ui.js
+++ b/www/js/ui.js
@@ -165,8 +165,11 @@ const UI = {
             top.push(UI.button(LANG("guide"), () => { LOAD(SCENES.Guide); }, page == "guide"));
             top.push(UI.button(LANG("about"), () => { LOAD(SCENES.About); }, page == "about"));
 
+            bottom.push(UI.button(LANG("extras"), () => { }));
+
             if(sessionStorage.getItem("auth") !== null) {
-                bottom.push(UI.button("Logout", () => {
+                bottom.push(UI.button(LANG("account"), () => { }));
+                bottom.push(UI.button(LANG("logout"), () => {
                     MESSAGE_COMPOSE([
                         PACK.u16(OpCode.Deauthenticate),
                     ]);