diff --git a/language.version b/language.version
index 0d6fcf412..3a2317064 100644
--- a/language.version
+++ b/language.version
@@ -1,2 +1,2 @@
 [default]
-SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r751 \cu(Thu 14 Jan 20:27:21 CET 2021)";
+SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r752 \cu(Thu 14 Jan 21:31:07 CET 2021)";
diff --git a/zscript/swwm_deathlydeathcannon.zsc b/zscript/swwm_deathlydeathcannon.zsc
index 663b47de2..7b8e6ea80 100644
--- a/zscript/swwm_deathlydeathcannon.zsc
+++ b/zscript/swwm_deathlydeathcannon.zsc
@@ -1209,7 +1209,7 @@ Class GatherDust : Actor
 			if ( distto < (32.*target.scale.x) )
 			{
 				// sucked in
-				target.specialf2 += FRandom[ExploS](.5,5.);
+				target.specialf2 += FRandom[ExploS](.5,2.);
 				Destroy();
 				return;
 			}
@@ -1943,6 +1943,16 @@ Class YnykronVoidSparkle : Actor
 			vel = dir.unit()*magvel;
 		}
 		Vector3 newpos = level.Vec3Offset(pos,vel);
+		if ( (newpos.z < floorz) || (newpos.z >= ceilingz) )
+		{
+			vel.z *= -1;
+			newpos = level.Vec3Offset(pos,vel);
+		}
+		if ( !level.IsPointInLevel(newpos) )
+		{
+			vel.xy *= -1;
+			newpos = level.Vec3Offset(pos,vel);
+		}
 		dir = level.Vec3Diff(newpos,pos);
 		double len = dir.length();
 		if ( (len > 0.) && (alpha > .1) )
@@ -2080,7 +2090,7 @@ Class YnykronSingularityExplosion : Actor
 		Scale *= FRandom[ExploS](0.8,1.1);
 		Scale.x *= RandomPick[ExploS](-1,1);
 		Scale.y *= RandomPick[ExploS](-1,1);
-		int numpt = Random[ExploS](4,8);
+		int numpt = Random[ExploS](2,4);
 		for ( int i=0; i<numpt; i++ )
 		{
 			Vector3 pvel = (FRandom[ExploS](-1,1),FRandom[ExploS](-1,1),FRandom[ExploS](-1,1)).unit()*FRandom[ExploS](4,20);
@@ -2313,7 +2323,7 @@ Class YnykronSingularity : Actor
 					// delet missile
 					if ( a.bMISSILE )
 					{
-						specialf2 += 10.;
+						specialf2 += 5.;
 						a.Destroy();
 						continue;
 					}
@@ -2435,7 +2445,7 @@ Class YnykronSingularity : Actor
 		}
 		Spawn("YnykronSingularityRing",pos);
 		Spawn("YnykronVoidExplLight",pos);
-		int numpt = Random[ExploS](40,60);
+		int numpt = Random[ExploS](60,80);
 		for ( int i=0; i<numpt; i++ )
 		{
 			let s = Spawn("YnykronVoidSparkle",pos);
@@ -2463,7 +2473,7 @@ Class YnykronSingularity : Actor
 		Vector3 HitNormal;
 		Vector3 origin;
 		double ang, pt;
-		int numpt = clamp(special1/6,2,8);
+		int numpt = clamp((60-special1)/4,2,12);
 		for ( int i=0; i<numpt; i++ )
 		{
 			double totaldist = 30+(special1**2.5)*.1;
diff --git a/zscript/swwm_handler.zsc b/zscript/swwm_handler.zsc
index 45efa8fbc..a6d006271 100644
--- a/zscript/swwm_handler.zsc
+++ b/zscript/swwm_handler.zsc
@@ -1799,7 +1799,7 @@ Class SWWMHandler : EventHandler
 				SWWMShadow.Track(e.Thing);
 		}
 		// Ynykron vortex optimization
-		if ( e.Thing.bSHOOTABLE || (e.Thing.bMISSILE && !e.Thing.IsZeroDamage()) )
+		if ( e.Thing.bSHOOTABLE || e.Thing.bMISSILE )
 			SuckableActors.Push(e.Thing);
 		// vanilla blood color changes
 		if ( (e.Thing.GetClass() == "BaronOfHell") || (e.Thing.GetClass() == "HellKnight") || (e.Thing.GetClass() == "Bishop") || (e.Thing.GetClass() == "Korax") )