diff --git a/fennecs.tests/ArchetypeTests.cs b/fennecs.tests/ArchetypeTests.cs
index 3657e618..58fccfea 100644
--- a/fennecs.tests/ArchetypeTests.cs
+++ b/fennecs.tests/ArchetypeTests.cs
@@ -278,4 +278,18 @@ public void IsComparable_Same_As_Signature()
         Assert.True(table1.CompareTo(null) == table1.Signature.CompareTo(default));
     }
 
+    [Fact]
+    public void Has_Signature_HashCode()
+    {
+        using var world = new World();
+        var entity1 = world.Spawn().Add("foo").Add(123).Add(17.0f).Id;
+        var entity2 = world.Spawn().Add(123).Add(17.0f).Id;
+        
+        var table1 = world.GetEntityMeta(entity1).Archetype;
+        var table2 = world.GetEntityMeta(entity2).Archetype;
+
+        Assert.True(table1.GetHashCode() == table1.Signature.GetHashCode());
+        Assert.True(table2.GetHashCode() == table2.Signature.GetHashCode());
+        Assert.NotEqual(table1.GetHashCode(), table2.GetHashCode());
+    }
 }
\ No newline at end of file
diff --git a/fennecs.tests/Entity/EntityTests.cs b/fennecs.tests/Entity/EntityTests.cs
index 59f1b37c..413ef9c2 100644
--- a/fennecs.tests/Entity/EntityTests.cs
+++ b/fennecs.tests/Entity/EntityTests.cs
@@ -432,5 +432,21 @@ public void Can_Get_Link_Objects_via_Get()
         Assert.Contains(helloWorld2, strings);
         Assert.Equal(2, strings.Length);
     }
+
+
+    [Fact]
+    public void Truthy()
+    {
+        using var world = new World();
+
+        var entity = world.Spawn();
+        Assert.True(entity);
+
+        entity.Despawn();
+        Assert.False(entity);
+        
+        entity = default;
+        Assert.False(entity);
+    }
     
 }
\ No newline at end of file
diff --git a/fennecs.tests/ExpressionTests.cs b/fennecs.tests/ExpressionTests.cs
index 6ab41027..ab521982 100644
--- a/fennecs.tests/ExpressionTests.cs
+++ b/fennecs.tests/ExpressionTests.cs
@@ -270,4 +270,23 @@ public static void SIMDsizeIsAccurate()
         var comp3 = Comp<string>.Plain;
         Assert.Equal(0, comp3.SIMDsize);
     }
+
+    [Fact]
+    public static void Comp_Virtual()
+    {
+        var comp = Comp.Virtual(typeof(int), Match.Any);
+        var test = Comp<int>.Matching(Match.Any);
+
+        Assert.Equal(comp, test);
+        Assert.Equal(test, comp);
+    }
+
+    [Fact]
+    public static void Relate_Entity_Operator()
+    {
+        using var world = new World();
+        var entity = world.Spawn();
+        var to = Relate.To(entity);
+        Assert.Equal(to, entity);
+    }
 }
diff --git a/fennecs.tests/Stream/Stream.1.Tests.cs b/fennecs.tests/Stream/Stream.1.Tests.cs
index 39105d66..ae54483d 100644
--- a/fennecs.tests/Stream/Stream.1.Tests.cs
+++ b/fennecs.tests/Stream/Stream.1.Tests.cs
@@ -243,4 +243,24 @@ public void Streams_Can_Despawn()
 
         Assert.Empty(world.Query<string>().Compile());
     }
+
+    [Fact]
+    public void MatchAll_Overloads()
+    {
+        using var world = new World();
+        world.Spawn().Add("69").Add(420).Add(1.0f).Add(new object()).Add('a');
+        
+        var query = world.All;
+        var stream1 = query.Stream<string>(Match.Any);
+        var stream2 = query.Stream<string, int>(Match.Any);
+        var stream3 = query.Stream<string, int, float>(Match.Any);
+        var stream4 = query.Stream<string, int, float, object>(Match.Any);
+        var stream5 = query.Stream<string, int, float, object, char>(Match.Any);
+        
+        Assert.Single(stream1);
+        Assert.Single(stream2);
+        Assert.Single(stream3);
+        Assert.Single(stream4);
+        Assert.Single(stream5);
+    }
 }
diff --git a/fennecs.tests/Stream/World.Stream.Tests.cs b/fennecs.tests/Stream/World.Stream.Tests.cs
index bcfabf69..95f9c4f2 100644
--- a/fennecs.tests/Stream/World.Stream.Tests.cs
+++ b/fennecs.tests/Stream/World.Stream.Tests.cs
@@ -91,4 +91,94 @@ public void Stream_5()
         Assert.NotEmpty(world);
         Assert.NotEmpty(stream);
     }
+
+    [Fact]
+    public void Stream_1Match()
+    {
+        using var world = new World();
+        var stream = world.Stream<string>(Match.Any);
+
+        Assert.Empty(world);
+        Assert.Empty(stream);
+
+        Assert.Equal(0, stream.Count);
+        
+        world.Spawn().Add("a");
+        Assert.Equal(1, stream.Count);
+
+        Assert.NotEmpty(world);
+        Assert.NotEmpty(stream);
+    }
+    
+    [Fact]
+    public void Stream_2Match()
+    {
+        using var world = new World();
+        var stream = world.Stream<string, int>(Match.Any);
+
+        Assert.Empty(world);
+        Assert.Empty(stream);
+
+        Assert.Equal(0, stream.Count);
+        
+        world.Spawn().Add("a").Add(1);
+        Assert.Equal(1, stream.Count);
+
+        Assert.NotEmpty(world);
+        Assert.NotEmpty(stream);
+    }
+    
+    [Fact]
+    public void Stream_3Match()
+    {
+        using var world = new World();
+        var stream = world.Stream<string, int, float>(Match.Any);
+
+        Assert.Empty(world);
+        Assert.Empty(stream);
+
+        Assert.Equal(0, stream.Count);
+        
+        world.Spawn().Add("a").Add(1).Add(1.0f);
+        Assert.Equal(1, stream.Count);
+
+        Assert.NotEmpty(world);
+        Assert.NotEmpty(stream);
+    }
+    
+    [Fact]
+    public void Stream_4Match()
+    {
+        using var world = new World();
+        var stream = world.Stream<string, int, float, object>(Match.Any);
+
+        Assert.Empty(world);
+        Assert.Empty(stream);
+
+        Assert.Equal(0, stream.Count);
+        
+        world.Spawn().Add("a").Add(1).Add(1.0f).Add(new object());
+        Assert.Equal(1, stream.Count);
+
+        Assert.NotEmpty(world);
+        Assert.NotEmpty(stream);
+    }
+    
+    [Fact]
+    public void Stream_5Match()
+    {
+        using var world = new World();
+        var stream = world.Stream<string, int, float, object, char>(Match.Any);
+
+        Assert.Empty(world);
+        Assert.Empty(stream);
+
+        Assert.Equal(0, stream.Count);
+        
+        world.Spawn().Add("a").Add(1).Add(1.0f).Add(new object()).Add('a');
+        Assert.Equal(1, stream.Count);
+
+        Assert.NotEmpty(world);
+        Assert.NotEmpty(stream);
+    }
 }
diff --git a/fennecs/Query.cs b/fennecs/Query.cs
index 96be76f7..6ae907f9 100644
--- a/fennecs/Query.cs
+++ b/fennecs/Query.cs
@@ -94,7 +94,7 @@ internal void ForgetArchetype(Archetype archetype)
     /// This query's currently matched Archetypes.
     /// (affected by filters)
     /// </summary>
-    internal readonly SortedSet<Archetype> Archetypes = [];
+    internal readonly SortedSet<Archetype> Archetypes;
 
     /// <summary>
     /// The World this Query is associated with.
diff --git a/fennecs/World.Streamable.cs b/fennecs/World.Streamable.cs
index 1228add1..66bcc60e 100644
--- a/fennecs/World.Streamable.cs
+++ b/fennecs/World.Streamable.cs
@@ -8,24 +8,24 @@ public partial class World : Streamable
 
     /// <summary>Compile an internal Query specifically for the requested Stream Types, and return a <see cref="fennecs.Stream{C0,C1}">Stream</see> View for it.</summary>
     /// <inheritdoc />
-    public Stream<C0, C1> Stream<C0, C1>(Match match0, Match match1) where C0 : notnull where C1 : notnull 
+    public Stream<C0, C1> Stream<C0, C1>(Match match0, Match match1) where C0 : notnull where C1 : notnull
         => Query<C0, C1>(match0, match1).Stream();
 
     /// <summary>Compile an internal Query specifically for the requested Stream Types, and return a <see cref="fennecs.Stream{C0,C1}">Stream</see> View for it.</summary>
     /// <inheritdoc />
     public Stream<C0, C1> Stream<C0, C1>(Match matchAll = default) where C0 : notnull where C1 : notnull
-        => Query<C0, C1>(matchAll).Stream();
+        => Stream<C0, C1>(matchAll, matchAll);
 
     /// <summary>Compile an internal Query specifically for the requested Stream Types, and return a <see cref="fennecs.Stream{C0,C1,C2}">Stream</see> View for it.</summary>
     /// <inheritdoc />
     public Stream<C0, C1, C2> Stream<C0, C1, C2>(Match match0, Match match1, Match match2) where C0 : notnull where C1 : notnull where C2 : notnull
-            => Query<C0, C1, C2>(match0, match1, match2).Stream();
+        => Query<C0, C1, C2>(match0, match1, match2).Stream();
 
     /// <summary>Compile an internal Query specifically for the requested Stream Types, and return a <see cref="fennecs.Stream{C0,C1,C2}">Stream</see> View for it.</summary>
     /// <inheritdoc />
     public Stream<C0, C1, C2> Stream<C0, C1, C2>(Match matchAll = default) where C0 : notnull where C1 : notnull where C2 : notnull
-        => Query<C0, C1, C2>(matchAll).Stream();
-    
+        => Stream<C0, C1, C2>(matchAll, matchAll, matchAll);
+
     /// <summary>Compile an internal Query specifically for the requested Stream Types, and return a <see cref="fennecs.Stream{C0,C1,C2,C3}">Stream</see> View for it.</summary>
     /// <inheritdoc />
     public Stream<C0, C1, C2, C3> Stream<C0, C1, C2, C3>(Match match0, Match match1, Match match2, Match match3) where C0 : notnull where C1 : notnull where C2 : notnull where C3 : notnull
@@ -34,15 +34,16 @@ public Stream<C0, C1, C2, C3> Stream<C0, C1, C2, C3>(Match match0, Match match1,
     /// <summary>Compile an internal Query specifically for the requested Stream Types, and return a <see cref="fennecs.Stream{C0,C1,C2,C3}">Stream</see> View for it.</summary>
     /// <inheritdoc />
     public Stream<C0, C1, C2, C3> Stream<C0, C1, C2, C3>(Match matchAll = default) where C0 : notnull where C1 : notnull where C2 : notnull where C3 : notnull
-        => Query<C0, C1, C2, C3>(matchAll).Stream();
-    
+        => Stream<C0, C1, C2, C3>(matchAll, matchAll, matchAll, matchAll);
+
     /// <summary>Compile an internal Query specifically for the requested Stream Types, and return a <see cref="fennecs.Stream{C0,C1,C2,C3,C4}">Stream</see> View for it.</summary>
     /// <inheritdoc />
-    public Stream<C0, C1, C2, C3, C4> Stream<C0, C1, C2, C3, C4>(Match match0, Match match1, Match match2, Match match3, Match match4) where C0 : notnull where C1 : notnull where C2 : notnull where C3 : notnull where C4 : notnull
+    public Stream<C0, C1, C2, C3, C4> Stream<C0, C1, C2, C3, C4>(Match match0, Match match1, Match match2, Match match3, Match match4)
+        where C0 : notnull where C1 : notnull where C2 : notnull where C3 : notnull where C4 : notnull
         => Query<C0, C1, C2, C3, C4>(match0, match1, match2, match3, match4).Stream();
-    
+
     /// <summary>Compile an internal Query specifically for the requested Stream Types, and return a <see cref="fennecs.Stream{C0,C1,C2,C3,C4}">Stream</see> View for it.</summary>
     /// <inheritdoc />
     public Stream<C0, C1, C2, C3, C4> Stream<C0, C1, C2, C3, C4>(Match matchAll = default) where C0 : notnull where C1 : notnull where C2 : notnull where C3 : notnull where C4 : notnull
-        => Query<C0, C1, C2, C3, C4>(matchAll).Stream();
+        => Stream<C0, C1, C2, C3, C4>(matchAll, matchAll, matchAll, matchAll, matchAll);
 }