diff --git a/Assets/Cryville/Common/Buffers/ArrayPool.cs b/Assets/Cryville/Common/Buffers/ArrayPool.cs
index 20bef71..b39ef70 100644
--- a/Assets/Cryville/Common/Buffers/ArrayPool.cs
+++ b/Assets/Cryville/Common/Buffers/ArrayPool.cs
@@ -13,7 +13,7 @@
 				return new T[_size];
 			}
 		}
-		Bucket[] _buckets;
+		readonly Bucket[] _buckets;
 		/// <summary>
 		/// Creates an instance of the <see cref="ArrayPool{T}" /> class with the default maximum list size and bucket capacity.
 		/// </summary>
diff --git a/Assets/Cryville/Common/Buffers/ListPool.cs b/Assets/Cryville/Common/Buffers/ListPool.cs
index 90b9e9e..2afa8d3 100644
--- a/Assets/Cryville/Common/Buffers/ListPool.cs
+++ b/Assets/Cryville/Common/Buffers/ListPool.cs
@@ -15,7 +15,7 @@ namespace Cryville.Common.Buffers {
 				return new List<T>(_size);
 			}
 		}
-		Bucket[] _buckets;
+		readonly Bucket[] _buckets;
 		/// <summary>
 		/// Creates an instance of the <see cref="ListPool{T}" /> class with the default maximum list size and bucket capacity.
 		/// </summary>
diff --git a/Assets/Cryville/Common/Logger.cs b/Assets/Cryville/Common/Logger.cs
index 8686222..f251881 100644
--- a/Assets/Cryville/Common/Logger.cs
+++ b/Assets/Cryville/Common/Logger.cs
@@ -21,8 +21,9 @@ namespace Cryville.Common {
 		public static void Create(string key, Logger logger) {
 			Instances[key] = logger;
 			if (logPath != null) {
-				Files[key] = new StreamWriter(logPath + "/" + ((int)DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds).ToString() + "-" + key + ".log");
-				Files[key].AutoFlush = true;
+				Files[key] = new StreamWriter(logPath + "/" + ((int)DateTime.UtcNow.Subtract(new DateTime(1970, 1, 1)).TotalSeconds).ToString() + "-" + key + ".log") {
+					AutoFlush = true
+				};
 			}
 		}
 		public static void Close() {
diff --git a/Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs b/Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs
index 2af293a..9d5fabe 100644
--- a/Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs
+++ b/Assets/Cryville/Common/Pdt/PdtEvaluatorBase.cs
@@ -127,7 +127,6 @@ namespace Cryville.Common.Pdt {
 		/// <returns>An operator of the specific name.</returns>
 		/// <remarks>The parameter count of the returned operator does not necessarily equal to <paramref name="pc" />.</remarks>
 		protected abstract PdtOperator GetOperator(string name, int pc);
-		bool _failure;
 		unsafe void Operate(PdtOperator op, int pc, bool noset = false) {
 			fixed (byte* pmem = _mem) {
 				op.Begin(this);
diff --git a/Assets/Cryville/Common/Pdt/PdtVariableMemory.cs b/Assets/Cryville/Common/Pdt/PdtVariableMemory.cs
index a8b6360..8eacff3 100644
--- a/Assets/Cryville/Common/Pdt/PdtVariableMemory.cs
+++ b/Assets/Cryville/Common/Pdt/PdtVariableMemory.cs
@@ -1,13 +1,11 @@
 using System;
-using System.Text;
-using UnityEditor;
 
 namespace Cryville.Common.Pdt {
 	/// <summary>
 	/// Span on the memory of a <see cref="PdtEvaluatorBase" />.
 	/// </summary>
 	public unsafe struct PdtVariableMemory {
-		byte* _ptr;
+		readonly byte* _ptr;
 		/// <summary>
 		/// The length of the span.
 		/// </summary>
diff --git a/Assets/Cryville/Common/Unity/UI/ProgressBar.cs b/Assets/Cryville/Common/Unity/UI/ProgressBar.cs
index e6b85e5..d94c66e 100644
--- a/Assets/Cryville/Common/Unity/UI/ProgressBar.cs
+++ b/Assets/Cryville/Common/Unity/UI/ProgressBar.cs
@@ -17,11 +17,9 @@ namespace Cryville.Common.Unity.UI {
 			set { m_targetValue = value; }
 		}
 
-#pragma warning disable IDE0051
 		protected override void Update() {
 			base.value = (base.value - m_targetValue) * m_smooth + m_targetValue;
 			base.Update();
 		}
-#pragma warning restore IDE0051
 	}
 }
diff --git a/Assets/Cryville/Crtr/Browsing/DetailPanel.cs b/Assets/Cryville/Crtr/Browsing/DetailPanel.cs
index 2cf9ae7..72c0724 100644
--- a/Assets/Cryville/Crtr/Browsing/DetailPanel.cs
+++ b/Assets/Cryville/Crtr/Browsing/DetailPanel.cs
@@ -21,7 +21,6 @@ namespace Cryville.Crtr.Browsing {
 		Text _title;
 		Text _desc;
 
-#pragma warning disable IDE0051
 		protected override void Awake() {
 			base.Awake();
 			_placeholder = transform.Find("__placeholder__").gameObject;
@@ -39,7 +38,6 @@ namespace Cryville.Crtr.Browsing {
 				Sprite.Destroy(_cover.sprite);
 			}
 		}
-#pragma warning restore IDE0051
 		public void Load(int id, ChartDetail data) {
 			_id = id;
 			_placeholder.SetActive(false);
diff --git a/Assets/Cryville/Crtr/Browsing/ResourceBrowser.cs b/Assets/Cryville/Crtr/Browsing/ResourceBrowser.cs
index 97e54f4..3e59dce 100644
--- a/Assets/Cryville/Crtr/Browsing/ResourceBrowser.cs
+++ b/Assets/Cryville/Crtr/Browsing/ResourceBrowser.cs
@@ -11,7 +11,6 @@ namespace Cryville.Crtr.Browsing {
 
 		FileDialog _dialog;
 
-#pragma warning disable IDE0051
 		protected void Start() {
 			PathContainer.LoadItem = LoadPathPart;
 			ItemContainer.LoadItem = LoadItem;
@@ -21,7 +20,6 @@ namespace Cryville.Crtr.Browsing {
 			_dialog = GameObject.Instantiate(Resources.Load<GameObject>("Common/FileDialog")).GetComponent<FileDialog>();
 			_dialog.gameObject.SetActive(false);
 		}
-#pragma warning restore IDE0051
 
 		private bool LoadPathPart(int id, GameObject obj) {
 			var item = ResourceManager.CurrentDirectory[id];
diff --git a/Assets/Cryville/Crtr/Browsing/ResourceBrowserUnit.cs b/Assets/Cryville/Crtr/Browsing/ResourceBrowserUnit.cs
index b4fe879..4a8dd31 100644
--- a/Assets/Cryville/Crtr/Browsing/ResourceBrowserUnit.cs
+++ b/Assets/Cryville/Crtr/Browsing/ResourceBrowserUnit.cs
@@ -3,11 +3,9 @@
 namespace Cryville.Crtr.Browsing {
 	public abstract class ResourceBrowserUnit : MonoBehaviour {
 		protected ResourceBrowserMaster Master { get; private set; }
-#pragma warning disable IDE0051
 		protected virtual void Awake() {
 			Master = GetComponentInParent<ResourceBrowserMaster>();
 		}
-#pragma warning restore IDE0051
 		public virtual void SlideToLeft() { }
 		public virtual void SlideToRight() { }
 	}
diff --git a/Assets/Cryville/Crtr/CastedList.cs b/Assets/Cryville/Crtr/CastedList.cs
index 0a2f5c0..1d8f587 100644
--- a/Assets/Cryville/Crtr/CastedList.cs
+++ b/Assets/Cryville/Crtr/CastedList.cs
@@ -4,7 +4,7 @@ using System.Collections.Generic;
 
 namespace Cryville.Crtr {
 	public class CastedList<T> : IList<T>, IList, IReadOnlyList<T> {
-		IList _list;
+		readonly IList _list;
 		public CastedList(IList list) {
 			_list = list;
 		}
diff --git a/Assets/Cryville/Crtr/Cocos2dFrames.cs b/Assets/Cryville/Crtr/Cocos2dFrames.cs
index 5779db2..873f5e8 100644
--- a/Assets/Cryville/Crtr/Cocos2dFrames.cs
+++ b/Assets/Cryville/Crtr/Cocos2dFrames.cs
@@ -1,13 +1,10 @@
-using System;
+using Cryville.Common;
+using System;
 using System.Collections;
 using System.Collections.Generic;
-using System.ComponentModel;
 using System.Globalization;
-using System.Reflection;
 using System.Text.RegularExpressions;
 using UnityEngine;
-using Cryville.Common;
-using Cryville.Common.Plist;
 
 namespace Cryville.Crtr {
 	[BinderAttribute(typeof(Cocos2dFramesBinder))]
@@ -21,6 +18,7 @@ namespace Cryville.Crtr {
 
 		public Dictionary<string, Frame> frames;
 		public class Frame {
+#pragma warning disable IDE1006
 			Rect _frame;
 			public Rect frame {
 				get { return _frame; }
@@ -31,8 +29,6 @@ namespace Cryville.Crtr {
 				set { _frame = value; }
 			}
 
-			public Vector2 offset;
-
 			bool _rotated = false;
 			public bool rotated {
 				get { return _rotated; }
@@ -42,6 +38,9 @@ namespace Cryville.Crtr {
 				get { return _rotated; }
 				set { _rotated = value; }
 			}
+#pragma warning restore IDE1006
+
+			public Vector2 offset;
 
 			public Rect sourceColorRect;
 			public Vector2 sourceSize;
diff --git a/Assets/Cryville/Crtr/Event/RMVPool.cs b/Assets/Cryville/Crtr/Event/RMVPool.cs
index 156eefa..bf56319 100644
--- a/Assets/Cryville/Crtr/Event/RMVPool.cs
+++ b/Assets/Cryville/Crtr/Event/RMVPool.cs
@@ -4,7 +4,7 @@ using System.Collections.Generic;
 namespace Cryville.Crtr.Event {
 	internal class RMVPool {
 		private class Bucket : ObjectPool<RealtimeMotionValue> {
-			MotionRegistry _reg;
+			readonly MotionRegistry _reg;
 			public Bucket(string name, int capacity) : base(capacity) {
 				_reg = ChartPlayer.motionRegistry[name];
 			}
@@ -19,7 +19,7 @@ namespace Cryville.Crtr.Event {
 				_buckets.Add(reg.Key, new Bucket(reg.Key, 4096));
 		}
 
-		Dictionary<RealtimeMotionValue, string> _rented = new Dictionary<RealtimeMotionValue, string>();
+		readonly Dictionary<RealtimeMotionValue, string> _rented = new Dictionary<RealtimeMotionValue, string>();
 		public RealtimeMotionValue Rent(MotionName name) {
 			var n = name.MainName;
 			var obj = _buckets[n].Rent();
diff --git a/Assets/Cryville/Crtr/InputProxy.cs b/Assets/Cryville/Crtr/InputProxy.cs
index 4c93c3b..cb88a91 100644
--- a/Assets/Cryville/Crtr/InputProxy.cs
+++ b/Assets/Cryville/Crtr/InputProxy.cs
@@ -93,7 +93,7 @@ namespace Cryville.Crtr {
 	}
 
 	public sealed class InputProxyHandler : InputHandler {
-		InputDefinition _def;
+		readonly InputDefinition _def;
 
 		public InputProxyHandler(InputDefinition def, InputHandler src) : base() {
 			_def = def;
diff --git a/Assets/Cryville/Crtr/Ruleset.cs b/Assets/Cryville/Crtr/Ruleset.cs
index 9e6d746..83f4370 100644
--- a/Assets/Cryville/Crtr/Ruleset.cs
+++ b/Assets/Cryville/Crtr/Ruleset.cs
@@ -49,7 +49,7 @@ namespace Cryville.Crtr {
 				ChartPlayer.etor.ContextCascadeUpdate(name, new PropSrc.Arbitrary(op.Type, value));
 			}
 		}
-		static ArbitraryOp _arbop = new ArbitraryOp();
+		static readonly ArbitraryOp _arbop = new ArbitraryOp();
 		[ElementList]
 		public Dictionary<RulesetSelectors, Constraint> Elements = new Dictionary<RulesetSelectors, Constraint>();
 		[PropertyList]
diff --git a/Assets/Cryville/Crtr/Settings.cs b/Assets/Cryville/Crtr/Settings.cs
index 15f7854..dd21876 100644
--- a/Assets/Cryville/Crtr/Settings.cs
+++ b/Assets/Cryville/Crtr/Settings.cs
@@ -16,7 +16,7 @@ namespace Cryville.Crtr {
 			}
 		}
 
-		static Settings _default = new Settings();
+		static readonly Settings _default = new Settings();
 		[Browsable(false)]
 		public static Settings Default {
 			get {
diff --git a/Assets/Cryville/Crtr/TrackHandler.cs b/Assets/Cryville/Crtr/TrackHandler.cs
index 4584fb4..6abeb34 100644
--- a/Assets/Cryville/Crtr/TrackHandler.cs
+++ b/Assets/Cryville/Crtr/TrackHandler.cs
@@ -32,8 +32,12 @@ namespace Cryville.Crtr {
 			cpt = s.ScreenPoint;
 			ptime = s.Time;
 			if (s.CloneType == 2) {
+#if UNITY_5_6_OR_NEWER
+				a_head.SetPositionAndRotation(GetCurrentWorldPoint(), Quaternion.Euler(s.Direction));
+#else
 				a_head.position = GetCurrentWorldPoint();
 				a_head.rotation = Quaternion.Euler(s.Direction);
+#endif
 			}
 			else if (s.CloneType == 3) {
 				spos = Vector3.zero;
@@ -114,8 +118,12 @@ namespace Cryville.Crtr {
 					i.AppendPoint(p, s.QuatDir);
 					i.Seal();
 				}
+#if UNITY_5_6_OR_NEWER
+				a_tail.SetPositionAndRotation(GetCurrentWorldPoint(), Quaternion.Euler(ts.Direction));
+#else
 				a_tail.position = GetCurrentWorldPoint();
 				a_tail.rotation = Quaternion.Euler(ts.Direction);
+#endif
 			}
 			else if (s.CloneType == 3) EndUpdatePosition(ns);
 			else if (s.CloneType >= 16) EndUpdatePosition(ps);