diff --git a/parts/language/lang_ja.lua b/parts/language/lang_ja.lua
index 9c4e1ddd..662ad5c2 100644
--- a/parts/language/lang_ja.lua
+++ b/parts/language/lang_ja.lua
@@ -27,7 +27,7 @@ return{
     clear={"Single","Double","Triple","Techrash","Pentacrash","Hexacrash","Heptacrash","Octacrash","Nonacrash","Decacrash","Undecacrash","Dodecacrash","Tridecacrash","Tetradecacrash","Pentadecacrash","Hexadecacrash","Heptadecacrash","Octadecacrash","Nonadecacrash","Ultracrash","Impossicrash"},
     cleared="$1 Lines",
     mini="Mini",b2b="B2B ",b3b="B2B2B ",
-    PC="Perfect Clear",HPC="Hemi-Perfect Clear",
+    PC="Perfect Clear",HPC="Half-Perfect Clear",
     replaying="[Replay]",
     tasUsing="[TAS]",
 
@@ -191,12 +191,12 @@ return{
         "プレイ時間:",
         "入力/回転/Hold:",
         "Block/Row/Atk.:",
-        "Recv./Res./Asc.:",
+        "Recv/Res/Asc:",
         "Dig/Dig Atk:",
         "Eff/Dig Eff:",
         "B2B/B3B:",
         "PC/HPC:",
-        "最適化ミス/Rate:",
+        "最適化 ミス/Rate:",
     },
     aboutTexts={
         "これは“ただの”落ちものパズルゲームです。本当ですよ",
@@ -396,7 +396,7 @@ return{
             ospin="O-spin",
             fineKill="最適化のみ",
             b2bKill="B2B継続",
-            lockout="盤面内でのみ設置",
+            lockout="盤面外設置禁止",
             easyFresh="通常の設置時間リセット",
             deepDrop="ディープドロップ",
             bone="骨ブロック",
@@ -614,9 +614,9 @@ return{
             ospin="O-Spin",
             fineKill="最適化のみ",
             b2bKill="B2B継続",
-            lockout="Fail on Lock Out",
+            lockout="盤面外設置禁止",
             easyFresh="通常の設置時間リセット",
-            deepDrop="Deep Drop",
+            deepDrop="ディープドロップ",
             bone="骨ブロック",
         },
         custom_field={
@@ -685,9 +685,9 @@ return{
         login={
             title="Sign In",
             register="Sign Up",
-            email="Email Address",
-            password="Password",
-            keepPW="Remember me",
+            email="メールアドレス",
+            password="パスワード",
+            keepPW="パスワードを記憶",
             login="Log In",
         },
         register={
@@ -829,7 +829,7 @@ return{
         ['pc_h']=           {"PC Challenge",      "HARD",       "100 Line以内にパフェをたくさん!"},
         ['pc_l']=           {"PC Challenge",      "LUNATIC",    "100 Line以内にパフェをたくさん!"},
         ['pc_inf']=         {"Inf. PC Challenge", "",           "できる限りたくさんのパフェを"},
-        ['tech_n']=         {"Tech",              "NORMAL",     "B2Bを繋げ続けよう!"},
+        ['tech_n']=         {"Tech",              "NORMAL",     "B2Bを続けよう!"},
         ['tech_n_plus']=    {"Tech",              "NORMAL+",    "回転入れとパフェだけ"},
         ['tech_h']=         {"Tech",              "HARD",       "B2Bを続けよう!"},
         ['tech_h_plus']=    {"Tech",              "HARD+",      "回転入れとパフェだけ"},
@@ -871,14 +871,14 @@ getTip={refuseCopy=true,
         "1next 1hold!",
         "1next 6hold!",
         "20Gは全く新しい種類のゲームルールです!",
-        "20PCって何?",
-        "26TSDって何?",
+        "20PCできるかい?",
+        "26TSDできるかい?",
         "2つの回転を使ってみよう、3つ使うとさらにいいです",
         "40-line Sprint WR: 14.915s by Reset_",
         "6next 1hold!",
         "6next 6hold?!",
         "低音を響かせろ!",
-        "低いフレームレートはあなたの快適さを奪います",
+        "フレームレートが低くなるほど、快適ではなくなります",
         "複数のHoldを使ってみよう!",
         "回転がブロックにどう作用しているか気づいたかい?",
         "回転なしで40 Lineを完走できる?",
@@ -930,7 +930,7 @@ getTip={refuseCopy=true,
         "sudo rm -rf /*",
         "Techmino rotation system(TRS)を楽しんで!",
         "Techmino楽しい!",
-        "TechminoのDiscord鯖に入りましょう!",
+        "TechminoのDiscordサーバーに入りましょう!",
         "Techminoは\"Technique\"と\"Tetromino\"を掛け合わせ造語です",
         "Techminoプレイヤーの未来はあなた達のものです",
         "TetroDictionary is now available in English.",
@@ -954,22 +954,22 @@ getTip={refuseCopy=true,
         "マルチプレイで遊ぼう! あなたの常識が壊されるでしょう",
         "メニューをシンプルモードにした場合、イースターエッグがなくなります",
         "ローディング中! シーンチェンジの間だけじゃないです!",
-        "Z推奨[01]東方プロジェクトをやってみよう!",
-        "Z推奨[02]Minecraftをやってみよう!",
-        "Z推奨[03]Osu!をやってみよう!",
-        "Z推奨[04]Quatrackをやってみよう!",
-        "Z推奨[05]Terrariaをやってみよう!",
-        "Z推奨[06]Celesteをやってみよう!",
-        "Z推奨[07]World of Gooをやってみよう!",
-        "Z推奨[08]Orzmicをやってみよう!",
-        "Z推奨[09]Puyo Puyoをやってみよう!",
-        "Z推奨[10]Phigrosをやってみよう!",
-        "Z推奨[11]VVVVVVをやってみよう!",
-        "Z推奨[12]Ballanceをやってみよう!",
-        "Z推奨[13]Zumaをやってみよう!",
-        "Z推奨[14]ルービックキューブをやってみよう!",
-        "Z推奨[15]15puzzleをやってみよう!",
-        "Z推奨[16]Minesweeperをやってみよう!",
+        "Zのおすすめ[01]東方をやってみよう!",
+        "Zのおすすめ[02]Minecraftをやってみよう!",
+        "Zのおすすめ[03]Osu!をやってみよう!",
+        "Zのおすすめ[04]Quatrackをやってみよう!",
+        "Zのおすすめ[05]Terrariaをやってみよう!",
+        "Zのおすすめ[06]Celesteをやってみよう!",
+        "Zのおすすめ[07]グーの惑星をやってみよう!",
+        "Zのおすすめ[08]Orzmicをやってみよう!",
+        "Zのおすすめ[09]Puyo Puyoをやってみよう!",
+        "Zのおすすめ[10]Phigrosをやってみよう!",
+        "Zのおすすめ[11]VVVVVVをやってみよう!",
+        "Zのおすすめ[12]Ballanceをやってみよう!",
+        "Zのおすすめ[13]Zumaをやってみよう!",
+        "Zのおすすめ[14]ルービックキューブをやってみよう!",
+        "Zのおすすめ[15]15puzzleをやってみよう!",
+        "Zのおすすめ[16]Minesweeperをやってみよう!",
         {C.H,"REGRET!!"},
         {C.lP,"Secret Number: 626"},
         {C.lR,"Z ",C.lG,"S ",C.lS,"J ",C.lO,"L ",C.lP,"T ",C.lY,"O ",C.lC,"I"},
@@ -978,10 +978,10 @@ getTip={refuseCopy=true,
         {C.P,"T-spin!"},
         {C.R,"\"知的財産権関連法\""},
         {C.R,"\"DMCA濫用\""},
-        {C.R,"DD",C.Z," Cannon=",C.P,"TS",C.R,"D",C.Z,"+",C.P,"TS",C.R,"D",C.Z," Cannon"},
-        {C.R,"DT",C.Z," Cannon=",C.P,"TS",C.R,"D",C.Z,"+",C.P,"TS",C.R,"T",C.Z," Cannon"},
+        {C.R,"DD",C.Z," 砲=",C.P,"TS",C.R,"D",C.Z,"+",C.P,"TS",C.R,"D",C.Z," 砲"},
+        {C.R,"DT",C.Z," 砲=",C.P,"TS",C.R,"D",C.Z,"+",C.P,"TS",C.R,"T",C.Z," 砲"},
         {C.R,"LrL ",C.G,"RlR ",C.B,"LLr ",C.O,"RRl ",C.P,"RRR ",C.P,"LLL ",C.C,"FFF ",C.Y,"RfR ",C.Y,"RRf ",C.Y,"rFF"},
         {C.Y,"O-Spin Triple!"},
-        {C.Z,"What? ",C.lC,"X-Spin?"},
+        {C.Z,"なんだって? ",C.lC,"X-Spin?"},
     }
 }