diff --git a/osu.Game/Beatmaps/BeatmapInfo.cs b/osu.Game/Beatmaps/BeatmapInfo.cs
index acab525821..8d1f0e59bf 100644
--- a/osu.Game/Beatmaps/BeatmapInfo.cs
+++ b/osu.Game/Beatmaps/BeatmapInfo.cs
@@ -98,7 +98,7 @@ namespace osu.Game.Beatmaps
         [JsonIgnore]
         public string StoredBookmarks
         {
-            get => string.Join(",", Bookmarks);
+            get => string.Join(',', Bookmarks);
             set
             {
                 if (string.IsNullOrEmpty(value))
diff --git a/osu.Game/Online/Chat/ChannelManager.cs b/osu.Game/Online/Chat/ChannelManager.cs
index f7ed57f207..16f46581c5 100644
--- a/osu.Game/Online/Chat/ChannelManager.cs
+++ b/osu.Game/Online/Chat/ChannelManager.cs
@@ -196,7 +196,7 @@ namespace osu.Game.Online.Chat
             if (target == null)
                 return;
 
-            var parameters = text.Split(new[] { ' ' }, 2);
+            var parameters = text.Split(' ', 2);
             string command = parameters[0];
             string content = parameters.Length == 2 ? parameters[1] : string.Empty;
 
diff --git a/osu.Game/Online/Chat/MessageFormatter.cs b/osu.Game/Online/Chat/MessageFormatter.cs
index 648e4a762b..d2a117876d 100644
--- a/osu.Game/Online/Chat/MessageFormatter.cs
+++ b/osu.Game/Online/Chat/MessageFormatter.cs
@@ -111,7 +111,7 @@ namespace osu.Game.Online.Chat
 
         public static LinkDetails GetLinkDetails(string url)
         {
-            var args = url.Split(new[] { '/' }, StringSplitOptions.RemoveEmptyEntries);
+            var args = url.Split('/', StringSplitOptions.RemoveEmptyEntries);
             args[0] = args[0].TrimEnd(':');
 
             switch (args[0])
diff --git a/osu.Game/Overlays/Profile/Header/BottomHeaderContainer.cs b/osu.Game/Overlays/Profile/Header/BottomHeaderContainer.cs
index 946831d13b..ebee377a51 100644
--- a/osu.Game/Overlays/Profile/Header/BottomHeaderContainer.cs
+++ b/osu.Game/Overlays/Profile/Header/BottomHeaderContainer.cs
@@ -148,7 +148,7 @@ namespace osu.Game.Overlays.Profile.Header
             if (string.IsNullOrEmpty(content)) return false;
 
             // newlines could be contained in API returned user content.
-            content = content.Replace("\n", " ");
+            content = content.Replace('\n', ' ');
 
             bottomLinkContainer.AddIcon(icon, text =>
             {
diff --git a/osu.Game/Rulesets/Objects/Legacy/ConvertHitObjectParser.cs b/osu.Game/Rulesets/Objects/Legacy/ConvertHitObjectParser.cs
index 7dcbc52cea..44b22033dc 100644
--- a/osu.Game/Rulesets/Objects/Legacy/ConvertHitObjectParser.cs
+++ b/osu.Game/Rulesets/Objects/Legacy/ConvertHitObjectParser.cs
@@ -159,7 +159,7 @@ namespace osu.Game.Rulesets.Objects.Legacy
                 {
                     string[] ss = split[5].Split(':');
                     endTime = Math.Max(startTime, Parsing.ParseDouble(ss[0]));
-                    readCustomSampleBanks(string.Join(":", ss.Skip(1)), bankInfo);
+                    readCustomSampleBanks(string.Join(':', ss.Skip(1)), bankInfo);
                 }
 
                 result = CreateHold(pos, combo, comboOffset, endTime + Offset - startTime);
diff --git a/osu.Game/Skinning/GameplaySkinComponent.cs b/osu.Game/Skinning/GameplaySkinComponent.cs
index 2aa380fa90..80f6efc07a 100644
--- a/osu.Game/Skinning/GameplaySkinComponent.cs
+++ b/osu.Game/Skinning/GameplaySkinComponent.cs
@@ -18,6 +18,6 @@ namespace osu.Game.Skinning
         protected virtual string ComponentName => Component.ToString();
 
         public string LookupName =>
-            string.Join("/", new[] { "Gameplay", RulesetPrefix, ComponentName }.Where(s => !string.IsNullOrEmpty(s)));
+            string.Join('/', new[] { "Gameplay", RulesetPrefix, ComponentName }.Where(s => !string.IsNullOrEmpty(s)));
     }
 }
diff --git a/osu.Game/Skinning/HUDSkinComponent.cs b/osu.Game/Skinning/HUDSkinComponent.cs
index 041beb68f2..cc053421b7 100644
--- a/osu.Game/Skinning/HUDSkinComponent.cs
+++ b/osu.Game/Skinning/HUDSkinComponent.cs
@@ -17,6 +17,6 @@ namespace osu.Game.Skinning
         protected virtual string ComponentName => Component.ToString();
 
         public string LookupName =>
-            string.Join("/", new[] { "HUD", ComponentName }.Where(s => !string.IsNullOrEmpty(s)));
+            string.Join('/', new[] { "HUD", ComponentName }.Where(s => !string.IsNullOrEmpty(s)));
     }
 }