diff --git a/source/games/duke/src/actors_d.cpp b/source/games/duke/src/actors_d.cpp
index 2a54de8e5..1ab13138a 100644
--- a/source/games/duke/src/actors_d.cpp
+++ b/source/games/duke/src/actors_d.cpp
@@ -379,6 +379,7 @@ int movesprite_ex_d(DDukeActor* actor, const DVector3& change, unsigned int clip
 			clipmove(ppos, &dasectp, change * 0.5, 64., 4., 4., cliptype, result);
 		else 
 		{
+			// todo: move this mess to the actor definitions once we have them all available.
 			double clipdist;
 			if (actor->spr.picnum == DTILE_LIZMAN)
 				clipdist = 18.25;
@@ -393,7 +394,7 @@ int movesprite_ex_d(DDukeActor* actor, const DVector3& change, unsigned int clip
 		// conditional code from hell...
 		if (dasectp == nullptr || (dasectp != nullptr &&
 			((actor->actorstayput != nullptr && actor->actorstayput != dasectp) ||
-			 ((actor->spr.picnum == DTILE_BOSS2) && actor->spr.pal == 0 && dasectp->lotag != 3) ||
+			 ((actor->spr.picnum == DTILE_BOSS2) && actor->spr.pal == 0 && dasectp->lotag != ST_3) ||
 			 ((actor->spr.picnum == DTILE_BOSS1 || actor->spr.picnum == DTILE_BOSS2) && dasectp->lotag == ST_1_ABOVE_WATER) ||
 			 (dasectp->lotag == ST_1_ABOVE_WATER && (actor->spr.picnum == DTILE_LIZMAN || (actor->spr.picnum == DTILE_LIZTROOP && actor->vel.Z == 0)))
 			))
diff --git a/source/games/duke/src/player_d.cpp b/source/games/duke/src/player_d.cpp
index 29e411601..aa11d8412 100644
--- a/source/games/duke/src/player_d.cpp
+++ b/source/games/duke/src/player_d.cpp
@@ -988,20 +988,6 @@ void shoot_d(DDukeActor* actor, int atwith, PClass *cls)
 		case DTILE_FIREBALL:
 			shootfireball(actor, p, spos, sang);
 			return;
-
-		case DTILE_FIREFLY: // DTILE_BOSS5 shot
-		{
-			auto k = spawn(actor, atwith);
-			if (k)
-			{
-				k->setsector(sect);
-				k->spr.pos = spos;
-				k->spr.Angles.Yaw = sang;
-				k->vel.X = 500 / 16.;
-				k->vel.Z = 0;
-			}
-			return;
-		}
 		}
 	}
 
diff --git a/source/games/duke/src/spawn_d.cpp b/source/games/duke/src/spawn_d.cpp
index e9f283cc4..c9b7ff940 100644
--- a/source/games/duke/src/spawn_d.cpp
+++ b/source/games/duke/src/spawn_d.cpp
@@ -70,34 +70,6 @@ DDukeActor* spawninit_d(DDukeActor* actj, DDukeActor* act, TArray<DDukeActor*>*
 	{
 		switch (act->spr.picnum)
 		{
-		case DTILE_FIREFLY:
-			act->spr.scale = DVector2(0.625, 0.625);
-			act->clipdist = 20;
-
-			if (actj)
-				act->spr.lotag = 0;
-
-			if ((act->spr.lotag > ud.player_skill) || ud.monsters_off)
-			{
-				act->spr.scale = DVector2(0, 0);
-				ChangeActorStat(act, STAT_MISC);
-				break;
-			}
-			else
-			{
-				makeitfall(act);
-
-				act->spr.cstat |= CSTAT_SPRITE_BLOCK_ALL;
-
-				if (actj) {
-					act->timetosleep = 0;
-					check_fta_sounds_d(act);
-					ChangeActorStat(act, STAT_ACTOR);
-				}
-				else
-					ChangeActorStat(act, STAT_ZOMBIEACTOR);
-			}
-			return act;
 		case DTILE_WHISPYSMOKE:
 			ChangeActorStat(act, STAT_MISC);
 			act->spr.pos.X += krandf(16) - 8;
diff --git a/wadsrc/static/filter/duke.worldtour/rmapinfo.spawnclasses b/wadsrc/static/filter/duke.worldtour/rmapinfo.spawnclasses
index 81ac465a3..3d7c36d69 100644
--- a/wadsrc/static/filter/duke.worldtour/rmapinfo.spawnclasses
+++ b/wadsrc/static/filter/duke.worldtour/rmapinfo.spawnclasses
@@ -12,6 +12,7 @@ spawnclasses
 	
 	5310 = DukeBoss5
 	5311 = DukeBoss5Stayput
+	5180 = DukeFirefly
 
 	5134 = DukeFlamethrowerSprite
 	5135 = DukeFlamethrowerAmmo
diff --git a/wadsrc/static/zscript/games/duke/actors/firefly.zs b/wadsrc/static/zscript/games/duke/actors/firefly.zs
index 3d219107d..2e029a706 100644
--- a/wadsrc/static/zscript/games/duke/actors/firefly.zs
+++ b/wadsrc/static/zscript/games/duke/actors/firefly.zs
@@ -1,6 +1,4 @@
 
-// for now only the effect is scriptified.
-
 class DukeFireflyFlyingEffect : DukeActor
 {
 	default
@@ -45,3 +43,27 @@ class DukeFireflyFlyingEffect : DukeActor
 		}
 	}
 }
+
+class DukeFirefly : DukeActor
+{
+	default
+	{
+		pic "FIREFLY";
+	}
+	
+	override bool ShootThis(DukeActor shooter, DukePlayer p, Vector3 spos, double sang)
+	{
+		let k = shooter.spawn("DukeFirefly");
+		if (k)
+		{
+			k.sector = shooter.sector;
+			k.pos = spos;
+			k.Angle = sang;
+			k.vel.X = 500 / 16.;
+			k.vel.Z = 0;
+		}
+		return true;
+	}
+}
+
+	
\ No newline at end of file