diff --git a/src/main/resources/lang/ja-JP/strings.yml b/src/main/resources/lang/ja-JP/strings.yml
index 165f9fb41..702c8d5a9 100644
--- a/src/main/resources/lang/ja-JP/strings.yml
+++ b/src/main/resources/lang/ja-JP/strings.yml
@@ -248,13 +248,11 @@ stageEditorInvalidNumber: "is not a number!"
 stageEditorInvalidDye: "is not a valid dye color!"
 stageEditorInvalidEvent: "is not a valid event name!"
 stageEditorDuplicateEvent: "Event is already in the list!"
-stageEditorInvalidDelay: "Delay must be at least one second!"
 stageEditorInvalidScript: "Denizen script not found!"
 stageEditorNoCitizens: "Citizens is not installed!"
 stageEditorNoDenizen: "Denizen is not installed!"
 stageEditorPositiveAmount: "You must enter a positive number!"
 stageEditorNoNumber: "Input was not a number!"
-stageEditorNotGreaterThanZero: "is not greater than 0!"
 stageEditorNotListofNumbers: "Invalid entry, input was not a list of numbers!"
 stageEditorNoDelaySet: "You must set a delay first!"
 stageEditorNoBlockNames: "You must set block names first!"
@@ -375,7 +373,6 @@ eventEditorSetItemAmounts: "Set item amounts"
 eventEditorNoNames: "No names set"
 eventEditorMustSetNames: "You must set item names first!"
 eventEditorInvalidName: "is not a valid item name!"
-eventEditorNotGreaterThanZero: "is not greater than 0!"
 eventEditorNotANumber: "is not a number!"
 eventEditorStorm: "Event Storm"
 eventEditorSetWorld: "Set world"
@@ -387,8 +384,6 @@ eventEditorMustSetStormDuration: "You must set a storm duration!"
 eventEditorStormCleared: "Storm data cleared."
 eventEditorEnterStormWorld: "Enter a world name for the storm to occur in, <cancel>"
 eventEditorEnterDuration: "Enter duration (in seconds)"
-eventEditorAtLeastOneSecond: "Amount must be at least 1 second!"
-eventEditorNotGreaterThanOneSecond: "is not greater than 1 second!"
 eventEditorThunder: "Event Thunder"
 eventEditorMustSetThunderDuration: "You must set a thunder duration!"
 eventEditorThunderCleared: "Thunder data cleared."
@@ -426,7 +421,6 @@ eventEditorSetMobHelmet: "Set helmet"
 eventEditorSetMobHelmetDrop: "Set drop chance of helmet"
 eventEditorSetMobSpawnAmount: "Set the amount of mobs to spawn"
 eventEditorSetDropChance: "Set the drop chance"
-eventEditorInvalidDropChance: "Drop chance has to be between 0.0 and 1.0"
 eventEditorPotionEffects: "Event Potion Effects"
 eventEditorSetPotionEffectTypes: "Set potion effect types"
 eventEditorMustSetPotionTypesFirst: "You must set potion effect types first!"
@@ -448,14 +442,11 @@ eventEditorSetMobAmountsPrompt: "Enter mob amount, <cancel>"
 eventEditorSetMobNamePrompt: "Enter the name for this mob, <cancel>"
 eventEditorSetMobLocationPrompt: "Right-click on a block to select it, <add>, <cancel>"
 eventEditorSetPotionEffectsPrompt: "Enter potion effect types, <space>, <cancel>"
-eventEditorSetPotionDurationsPrompt: "Enter effect durations (in milliseconds), <space>, <cancel>"
+eventEditorSetPotionDurationsPrompt: "Enter potion effect durations (in seconds), <space>, <cancel>"
 eventEditorSetPotionMagnitudesPrompt: "Enter potion effect magnitudes, <space>, <cancel>"
 eventEditorSetHungerPrompt: "Enter hunger level, or -1 to clear"
-eventEditorHungerLevelAtLeastZero: "Hunger level must be at least 0!"
 eventEditorSetSaturationPrompt: "Enter saturation level, or -1 to clear"
-eventEditorSaturationLevelAtLeastZero: "Saturation level must be at least 0!"
 eventEditorSetHealthPrompt: "Enter health level, or -1 to clear"
-eventEditorHealthLevelAtLeastZero: "Health level must be at least 0!"
 eventEditorSetTeleportPrompt: "Right-click on a block to teleport the player to, <done>, <clear>, <cancel>"
 eventEditorCommandsNote: "Note: You may use <player> to refer to the player's name."
 eventEditorSetCommandsPrompt: "Enter commands, <semicolon>, <clear>, <cancel>"
@@ -491,7 +482,6 @@ reqNoItemsSet: "No items set"
 reqNoValuesSet: "No values set"
 reqHeroesPrimaryDisplay: "Primary Class:"
 reqHeroesSecondaryDisplay: "Secondary Class:"
-reqGreaterThanZero: "Amount must be greater than 0!"
 reqNotAQuestName: "<quest> is not a Quest name!"
 reqItemCleared: "Item requirements cleared."
 reqListsNotSameSize: "The items list and remove items list are not the same size!"
@@ -579,28 +569,19 @@ itemCreateLoaded: "Item loaded."
 itemCreateNoItem: "No item in hand!"
 itemCreateNoName: "You must set a name first!"
 itemCreateInvalidName: "Invalid item name!"
-itemCreateInvalidAmount: "Amount must be between 1 and 64!"
 itemCreateInvalidDurab: "Invalid item durability!"
 itemCreateInvalidEnch: "Invalid enchantment name!"
-itemCreateInvalidLevel: "Level must be greater than 0!"
 itemCreateInvalidInput: "Invalid input!"
 itemCreateNotNumber: "Input was not a number!"
 itemCreateNoNameAmount: "You must set a name and amount first!"
 itemCreateCriticalError: "A critical error has occurred."
 dateCreateEnterDay: "Enter a day (max. 31), <cancel>"
-dateCreateInvalidDay: "Day must be between 1 and 31!"
 dateCreateEnterMonth: "Enter a month (max. 12), <cancel>"
-dateCreateInvalidMonth: "Day must be between 1 and 12!"
 dateCreateEnterYear: "Enter a year (max. 9999), <cancel>"
-dateCreateInvalidYear: "Year must be between 1000 and 9999!"
 dateCreateEnterHour: "Enter an hour (max. 23), <cancel>"
-dateCreateInvalidHour: "Hour must be between 0 and 23!"
 dateCreateEnterMinute: "Enter a minute (max. 59), <cancel>"
-dateCreateInvalidMinute: "Minute must be between 0 and 59!"
 dateCreateEnterSecond: "Enter a second (max. 59), <cancel>"
-dateCreateInvalidSecond: "Second must be between 0 and 59!"
 dateCreateEnterZone: "Enter a UTC time zone (max. 14), <cancel>"
-dateCreateInvalidZone: "Zone must be between -12 and 14!"
 dateCreateNoYearAmount: "You must set a year first!"
 questTitle: "-- <quest> --"
 questObjectivesTitle: "---(<quest>)---"
@@ -757,10 +738,12 @@ giveQuestPoints: "Gave <number> Quest Points from <player>."
 questPointsGiven: "<player> gave you <number> Quest Points."
 enableNPCGUI: "<npc> will now provide a GUI Quest Display."
 disableNPCGUI: "<npc> will no longer provide a GUI Quest Display."
+invalidMinimum: "Input must be at least <number>!\ninvalidRange: \"Input must be between <least> and <greatest>!"
+invalidOption: "無効なオプション"
 invalidNumber: "Invalid number."
+invalidStageNum: "Invalid stage number for Quest <quest>"
 noCurrentQuest: "<player> does not currently have any active Quests."
 playerNotFound: "Player not found."
-invalidStageNum: "Invalid stage number for Quest <quest>"
 errorNPCID: 'Error: There is no NPC with ID <number>'
 errorReading: "Error reading <file>, skipping.."
 errorReadingSuppress: "Error reading <file>, suppressing further errors."
@@ -862,7 +845,6 @@ noNamesSet: "名前が未設定です"
 worlds: "ワールド"
 mobs: "モブ"
 points: "ポイント"
-invalidOption: "無効なオプション"
 npcHint: "注釈: 右クリックでNPC IDを取得"
 listDuplicate: "List contains duplicates!"
 id: "ID"