diff --git a/src/common/scripting/backend/codegen.cpp b/src/common/scripting/backend/codegen.cpp
index b14fb267cd..df1c48c22e 100644
--- a/src/common/scripting/backend/codegen.cpp
+++ b/src/common/scripting/backend/codegen.cpp
@@ -12640,6 +12640,15 @@ FxExpression *FxLocalVariableDeclaration::Resolve(FCompileContext &ctx)
 	if (ValueType->RegType == REGT_NIL && ValueType != TypeAuto)
 	{
 		auto sfunc = static_cast<VMScriptFunction *>(ctx.Function->Variants[0].Implementation);
+
+		const unsigned MAX_STACK_ALLOC = 512 * 1024; // Windows stack is 1 MB, but we cannot go up there without problems
+		if (uint64_t(ValueType->Size) + uint64_t(sfunc->ExtraSpace) > MAX_STACK_ALLOC)
+		{
+			ScriptPosition.Message(MSG_ERROR, "%s exceeds max. allowed size of 512kb for local variables at variable %s", sfunc->Name.GetChars(), Name.GetChars());
+			delete this;
+			return nullptr;
+		}
+
 		StackOffset = sfunc->AllocExtraStack(ValueType);
 
 		if (Init != nullptr)
diff --git a/src/common/scripting/frontend/zcc_compile.cpp b/src/common/scripting/frontend/zcc_compile.cpp
index d109717a32..faef50959c 100644
--- a/src/common/scripting/frontend/zcc_compile.cpp
+++ b/src/common/scripting/frontend/zcc_compile.cpp
@@ -2286,6 +2286,11 @@ PType *ZCCCompiler::ResolveArraySize(PType *baseType, ZCC_Expression *arraysize,
 			Error(arraysize, "Array size must be positive");
 			return TypeError;
 		}
+		if (uint64_t(size) * baseType->Size > 0x7fffffff)
+		{
+			Error(arraysize, "Array size overflow. Total size must be less than 2GB");
+			return TypeError;
+		}
 		baseType = NewArray(baseType, size);
 	}
 
diff --git a/src/gamedata/statistics.cpp b/src/gamedata/statistics.cpp
index 95d8165ae0..d374f2e8a3 100644
--- a/src/gamedata/statistics.cpp
+++ b/src/gamedata/statistics.cpp
@@ -343,8 +343,12 @@ static void LevelStatEntry(FSessionStatistics *es, const char *level, const char
 	time (&clock);
 	lt = localtime (&clock);
 
-	strcpy(s.name, level);
-	strcpy(s.info, text);
+	strncpy(s.name, level, sizeof(s.name) - 1);
+	s.name[sizeof(s.name) - 1] = '\0';
+
+	strncpy(s.info, text, sizeof(s.info) - 1);
+	s.info[sizeof(s.info) - 1] = '\0';
+
 	s.timeneeded=playtime;
 	es->levelstats.Push(s);
 }
diff --git a/src/rendering/hwrenderer/scene/hw_clipper.cpp b/src/rendering/hwrenderer/scene/hw_clipper.cpp
index a99752dec7..4b267e2fa5 100644
--- a/src/rendering/hwrenderer/scene/hw_clipper.cpp
+++ b/src/rendering/hwrenderer/scene/hw_clipper.cpp
@@ -469,8 +469,8 @@ angle_t Clipper::PointToPseudoOrthoAngle(double x, double y)
 	{
 		angle_t af = viewpoint->FrustAngle;
 		double xproj = disp.XY().Length() * deltaangle(disp.Angle(), viewpoint->Angles.Yaw).Sin();
-		xproj *= viewpoint->ScreenProj;
-		if (fabs(xproj) < r_viewwindow.WidescreenRatio*1.13) // 2.0)
+		xproj *= viewpoint->ScreenProjX;
+		if (fabs(xproj) < 1.13)
 		{
 			return AngleToPseudo( viewpoint->Angles.Yaw.BAMs() - xproj * 0.5 * af );
 		}
diff --git a/src/rendering/r_utility.cpp b/src/rendering/r_utility.cpp
index b7b6b452ba..5313f738c2 100644
--- a/src/rendering/r_utility.cpp
+++ b/src/rendering/r_utility.cpp
@@ -167,6 +167,7 @@ FRenderViewpoint::FRenderViewpoint()
 	sector = nullptr;
 	FieldOfView =  DAngle::fromDeg(90.); // Angles in the SCREENWIDTH wide window
 	ScreenProj = 0.0;
+	ScreenProjX = 0.0;
 	TicFrac = 0.0;
 	FrameTime = 0;
 	extralight = 0;
@@ -704,7 +705,10 @@ void FRenderViewpoint::SetViewAngle(const FViewWindow& viewWindow)
 	HWAngles.Yaw = FAngle::fromDeg(270.0 - Angles.Yaw.Degrees());
 
 	if (IsOrtho() && (camera->ViewPos->Offset.XY().Length() > 0.0))
+	{
 		ScreenProj = 1.34396 / camera->ViewPos->Offset.Length() / tan (FieldOfView.Radians()*0.5); // [DVR] Estimated. +/-1 should be top/bottom of screen.
+		ScreenProjX = ScreenProj * 0.5 / viewWindow.WidescreenRatio;
+	}
 
 }
 
diff --git a/src/rendering/r_utility.h b/src/rendering/r_utility.h
index ee12ecf366..7beaf14407 100644
--- a/src/rendering/r_utility.h
+++ b/src/rendering/r_utility.h
@@ -43,6 +43,7 @@ struct FRenderViewpoint
 	sector_t		*sector;		// [RH] keep track of sector viewing from
 	DAngle			FieldOfView;	// current field of view
 	double			ScreenProj;	// Screen projection factor for orthographic projection
+	double			ScreenProjX;	// Same for X-axis (screenspace)
 
 	double			TicFrac;		// fraction of tic for interpolation
 	uint32_t		FrameTime;		// current frame's time in tics.
diff --git a/src/scripting/thingdef_data.cpp b/src/scripting/thingdef_data.cpp
index dc7fcacc30..cf1d0eca1c 100644
--- a/src/scripting/thingdef_data.cpp
+++ b/src/scripting/thingdef_data.cpp
@@ -385,6 +385,7 @@ static FFlagDef ActorFlagDefs[]=
 	DEFINE_FLAG(RF2, CAMFOLLOWSPLAYER, AActor, renderflags2),
 	DEFINE_FLAG(RF2, ISOMETRICSPRITES, AActor, renderflags2),
 	DEFINE_FLAG(RF2, SQUAREPIXELS, AActor, renderflags2),
+	DEFINE_FLAG(RF2, STRETCHPIXELS, AActor, renderflags2),
 
 	// Bounce flags
 	DEFINE_FLAG2(BOUNCE_Walls, BOUNCEONWALLS, AActor, BounceFlags),
diff --git a/src/scripting/zscript/zcc_compile_doom.cpp b/src/scripting/zscript/zcc_compile_doom.cpp
index 3563967e59..a86ea9a0e1 100644
--- a/src/scripting/zscript/zcc_compile_doom.cpp
+++ b/src/scripting/zscript/zcc_compile_doom.cpp
@@ -724,8 +724,15 @@ void ZCCDoomCompiler::ProcessDefaultProperty(PClassActor *cls, ZCC_PropertyStmt
 	}
 	else if (namenode->SiblingNext->SiblingNext == namenode)
 	{
+		FName name(namenode->Id);
+
+		if(name == NAME_self)
+		{
+			name = cls->TypeName;
+		}
+
 		// a two-name property
-		propname << FName(namenode->Id).GetChars() << "." << FName(static_cast<ZCC_Identifier *>(namenode->SiblingNext)->Id).GetChars();
+		propname << name.GetChars() << "." << FName(static_cast<ZCC_Identifier *>(namenode->SiblingNext)->Id).GetChars();
 	}
 	else
 	{
@@ -784,6 +791,13 @@ void ZCCDoomCompiler::ProcessDefaultFlag(PClassActor *cls, ZCC_FlagStmt *flg)
 	else if (namenode->SiblingNext->SiblingNext == namenode)
 	{
 		// a two-name flag
+
+		if(namenode->Id == NAME_self)
+		{
+			n1 = cls->TypeName.GetChars();
+		}
+
+
 		n2 = FName(static_cast<ZCC_Identifier *>(namenode->SiblingNext)->Id).GetChars();
 	}
 	else