diff --git a/src/g_shared/a_artifacts.cpp b/src/g_shared/a_artifacts.cpp
index 5b03d4a607..bf24c8eb85 100644
--- a/src/g_shared/a_artifacts.cpp
+++ b/src/g_shared/a_artifacts.cpp
@@ -1884,6 +1884,13 @@ void APowerDoubleFiringSpeed::EndEffect( )
 
 IMPLEMENT_CLASS(APowerMorph, false, false, false, false)
 
+DEFINE_FIELD(APowerMorph, PlayerClass)
+DEFINE_FIELD(APowerMorph, MorphFlash)
+DEFINE_FIELD(APowerMorph, UnMorphFlash)
+DEFINE_FIELD(APowerMorph, MorphStyle)
+DEFINE_FIELD(APowerMorph, MorphedPlayer)
+DEFINE_FIELD(APowerMorph, bInUndoMorph)
+
 //===========================================================================
 //
 // APowerMorph :: Serialize
@@ -1897,7 +1904,7 @@ void APowerMorph::Serialize(FSerializer &arc)
 		("morphstyle", MorphStyle)
 		("morphflash", MorphFlash)
 		("unmorphflash", UnMorphFlash)
-		("player", Player);
+		("morphedplayer", MorphedPlayer);
 }
 
 //===========================================================================
@@ -1917,7 +1924,7 @@ void APowerMorph::InitEffect( )
 		{
 			Owner = realplayer->mo;				// Replace the new owner in our owner; safe because we are not attached to anything yet
 			ItemFlags |= IF_CREATECOPYMOVED;	// Let the caller know the "real" owner has changed (to the morphed actor)
-			Player = realplayer;				// Store the player identity (morphing clears the unmorphed actor's "player" field)
+			MorphedPlayer = realplayer;				// Store the player identity (morphing clears the unmorphed actor's "player" field)
 		}
 		else // morph failed - give the caller an opportunity to fail the pickup completely
 		{
@@ -1939,19 +1946,19 @@ void APowerMorph::EndEffect( )
 	// Abort if owner already destroyed
 	if (Owner == NULL)
 	{
-		assert(Player == NULL);
+		assert(MorphedPlayer == NULL);
 		return;
 	}
 	
 	// Abort if owner already unmorphed
-	if (Player == NULL)
+	if (MorphedPlayer == NULL)
 	{
 		return;
 	}
 
 	// Abort if owner is dead; their Die() method will
 	// take care of any required unmorphing on death.
-	if (Player->health <= 0)
+	if (MorphedPlayer->health <= 0)
 	{
 		return;
 	}
@@ -1959,26 +1966,26 @@ void APowerMorph::EndEffect( )
 	// Unmorph if possible
 	if (!bInUndoMorph)
 	{
-		int savedMorphTics = Player->morphTics;
-		P_UndoPlayerMorph (Player, Player, 0, !!(Player->MorphStyle & MORPH_UNDOALWAYS));
+		int savedMorphTics = MorphedPlayer->morphTics;
+		P_UndoPlayerMorph (MorphedPlayer, MorphedPlayer, 0, !!(MorphedPlayer->MorphStyle & MORPH_UNDOALWAYS));
 
 		// Abort if unmorph failed; in that case,
 		// set the usual retry timer and return.
-		if (Player != NULL && Player->morphTics)
+		if (MorphedPlayer != NULL && MorphedPlayer->morphTics)
 		{
 			// Transfer retry timeout
 			// to the powerup's timer.
-			EffectTics = Player->morphTics;
+			EffectTics = MorphedPlayer->morphTics;
 			// Reload negative morph tics;
 			// use actual value; it may
 			// be in use for animation.
-			Player->morphTics = savedMorphTics;
+			MorphedPlayer->morphTics = savedMorphTics;
 			// Try again some time later
 			return;
 		}
 	}
 	// Unmorph suceeded
-	Player = NULL;
+	MorphedPlayer = NULL;
 }
 
 // Infinite Ammo Powerup -----------------------------------------------------
diff --git a/src/g_shared/a_artifacts.h b/src/g_shared/a_artifacts.h
index bd7e86323c..d9629c1653 100644
--- a/src/g_shared/a_artifacts.h
+++ b/src/g_shared/a_artifacts.h
@@ -286,7 +286,7 @@ public:
 	PClassPlayerPawn *PlayerClass;
 	PClassActor *MorphFlash, *UnMorphFlash;
 	int MorphStyle;
-	player_t *Player;
+	player_t *MorphedPlayer;
 	bool bInUndoMorph;	// Because P_UndoPlayerMorph() can call EndEffect recursively
 
 protected:
diff --git a/src/g_shared/a_morph.cpp b/src/g_shared/a_morph.cpp
index 49ea525bbf..84de5a0d6e 100644
--- a/src/g_shared/a_morph.cpp
+++ b/src/g_shared/a_morph.cpp
@@ -618,6 +618,13 @@ void InitAllPowerupEffects(AInventory *item)
 
 IMPLEMENT_CLASS(AMorphProjectile, false, false, false, false)
 
+DEFINE_FIELD(AMorphProjectile, PlayerClass)
+DEFINE_FIELD(AMorphProjectile, MonsterClass)
+DEFINE_FIELD(AMorphProjectile, MorphFlash)
+DEFINE_FIELD(AMorphProjectile, UnMorphFlash)
+DEFINE_FIELD(AMorphProjectile, Duration)
+DEFINE_FIELD(AMorphProjectile, MorphStyle)
+
 int AMorphProjectile::DoSpecialDamage (AActor *target, int damage, FName damagetype)
 {
 	if (target->player)
@@ -652,6 +659,11 @@ IMPLEMENT_POINTERS_START(AMorphedMonster)
 	IMPLEMENT_POINTER(UnmorphedMe)
 IMPLEMENT_POINTERS_END
 
+DEFINE_FIELD(AMorphedMonster, UnmorphedMe)
+DEFINE_FIELD(AMorphedMonster, UnmorphTime)
+DEFINE_FIELD(AMorphedMonster, MorphStyle)
+DEFINE_FIELD(AMorphedMonster, MorphExitFlash)
+
 void AMorphedMonster::Serialize(FSerializer &arc)
 {
 	Super::Serialize (arc);
diff --git a/wadsrc/static/zscript/shared/inventory.txt b/wadsrc/static/zscript/shared/inventory.txt
index 048590b397..12e521d53f 100644
--- a/wadsrc/static/zscript/shared/inventory.txt
+++ b/wadsrc/static/zscript/shared/inventory.txt
@@ -487,6 +487,12 @@ class PowerDoubleFiringSpeed : Powerup native {}
 
 class PowerMorph : Powerup native
 {
+	native Class<PlayerPawn> PlayerClass;
+	native Class<Actor> MorphFlash, UnMorphFlash;
+	native int MorphStyle;
+	native PlayerInfo MorphedPlayer;
+	native bool bInUndoMorph;
+
 	Default
 	{
 		Powerup.Duration -40;
diff --git a/wadsrc/static/zscript/shared/morph.txt b/wadsrc/static/zscript/shared/morph.txt
index ff58d897b1..c5c2cbe0a7 100644
--- a/wadsrc/static/zscript/shared/morph.txt
+++ b/wadsrc/static/zscript/shared/morph.txt
@@ -1,5 +1,10 @@
 class MorphProjectile : Actor native
 {
+
+	native Class<PlayerPawn> PlayerClass;
+	native Class<Actor> MonsterClass, MorphFlash, UnMorphFlash;
+	native int Duration, MorphStyle;
+
 	Default
 	{
 		Damage 1;
@@ -11,6 +16,10 @@ class MorphProjectile : Actor native
 
 class MorphedMonster : Actor native
 {
+	native Actor UnmorphedMe;
+	native int UnmorphTime, MorphStyle;
+	native Class<Actor> MorphExitFlash;
+
 	Default
 	{
 		Monster;