diff --git a/www/lang/Arduino_ja.js b/www/lang/Arduino_ja.js
index 0a8b0aba3..c91fb220d 100644
--- a/www/lang/Arduino_ja.js
+++ b/www/lang/Arduino_ja.js
@@ -43,12 +43,14 @@ Blockly.Msg.CAT_ARDUINO_IN = "🔛 入力 / 出力";
 Blockly.Msg.CAT_ARDUINO_OUT = "↪️ 終了";
 Blockly.Msg.CAT_ARDUINO_TIME = "⏱️ 時間"; 
 Blockly.Msg.CAT_OTTO = "🤖 Otto";
-Blockly.Msg.CAT_OTTO_DIY = "🤖 Otto DIY";
+Blockly.Msg.CAT_OTTO_ARMS = "🦾 腕";
+Blockly.Msg.CAT_OTTO_WHEELS = "💿 車輪";
+Blockly.Msg.CAT_OTTO_NINJA = "🐱‍👤 忍者";
+Blockly.Msg.CAT_OTTO_QUAD = "🕷️ クアッド";
 Blockly.Msg.CAT_ARDUINO_matrice8x8 = "👄 LED の口";
 Blockly.Msg.CAT_ARDUINO_matrice16x8 = "👀 LED の目";
 Blockly.Msg.CAT_ESCORNABOT="🐞 Escornabot";
 Blockly.Msg.CAT_servo = "🦾 サーボ";
-Blockly.Msg.CAT_servo360 = "💿 360° サーボ";
 Blockly.Msg.CAT_actionneur = "⚙️ モーター";
 Blockly.Msg.CAT_ARDUINO_moteur="⚙️ ステッピングモーター";
 Blockly.Msg.CAT_ultrason = "👂 センサー";