diff --git a/language.version b/language.version
index cbb9343e8..df260f413 100644
--- a/language.version
+++ b/language.version
@@ -1,3 +1,3 @@
 [default]
-SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r503 \cu(Sat 22 May 18:56:41 CEST 2021)\c-";
-SWWM_SHORTVER="\cw0.9.11b-pre r503 \cu(2021-05-22 18:56:41)\c-";
+SWWM_MODVER="\chSWWM \czGZ\c- \cw0.9.11b-pre r505 \cu(Sun 23 May 10:32:23 CEST 2021)\c-";
+SWWM_SHORTVER="\cw0.9.11b-pre r505 \cu(2021-05-23 10:32:23)\c-";
diff --git a/zscript/items/swwm_powerups.zsc b/zscript/items/swwm_powerups.zsc
index 463d93178..35c38e41f 100644
--- a/zscript/items/swwm_powerups.zsc
+++ b/zscript/items/swwm_powerups.zsc
@@ -1291,8 +1291,8 @@ Class LampMoth : Actor
 	Default
 	{
 		Tag "$T_MOTH";
-		Radius 1;
-		Height 2;
+		Radius 2;
+		Height 4;
 		Speed 2;
 		DamageFunction 1;
 		MeleeRange 16;
diff --git a/zscript/swwm_common_fx.zsc b/zscript/swwm_common_fx.zsc
index faa7bf8eb..4f6297970 100644
--- a/zscript/swwm_common_fx.zsc
+++ b/zscript/swwm_common_fx.zsc
@@ -1119,8 +1119,8 @@ Class InvisibleSplasher : Actor
 	{
 		Mass 100;
 		VSpeed -2;
-		Radius 1;
-		Height 2;
+		Radius 2;
+		Height 4;
 		+NOBLOCKMAP;	// needed to prevent infinite loops with some 3D floor water (yes, you read that right)
 		FloatBobPhase 0;
 	}
diff --git a/zscript/weapons/swwm_baseweapon_fx.zsc b/zscript/weapons/swwm_baseweapon_fx.zsc
index 3ead1b245..1c826f13a 100644
--- a/zscript/weapons/swwm_baseweapon_fx.zsc
+++ b/zscript/weapons/swwm_baseweapon_fx.zsc
@@ -10,8 +10,8 @@ Class SWWMCasing : Actor abstract
 
 	Default
 	{
-		Radius 1;
-		Height 2;
+		Radius 2;
+		Height 4;
 		+NOBLOCKMAP;
 		+MISSILE;
 		+DROPOFF;
diff --git a/zscript/weapons/swwm_danmaku_fx.zsc b/zscript/weapons/swwm_danmaku_fx.zsc
index 20ea4a3dd..16b75496b 100644
--- a/zscript/weapons/swwm_danmaku_fx.zsc
+++ b/zscript/weapons/swwm_danmaku_fx.zsc
@@ -145,8 +145,8 @@ Class EvisceratorChunk : Actor
 	Default
 	{
 		Obituary "$O_EVISCERATOR";
-		Radius 1;
-		Height 2;
+		Radius 2;
+		Height 4;
 		Speed 50;
 		DamageFunction int(clamp((vel.length()-8)*.2+max(0,1.-lifetime)*2.,0,15));
 		DamageType 'shot';
@@ -236,7 +236,7 @@ Class EvisceratorChunk : Actor
 
 	void A_HandleBounce()
 	{
-		Vector3 HitNormal = -vel.unit();
+		Vector3 HitNormal = (0,0,0);
 		F3DFloor ff;
 		if ( BlockingFloor )
 		{
@@ -275,6 +275,7 @@ Class EvisceratorChunk : Actor
 			Vector3 diff = level.Vec3Diff(BlockingMobj.Vec3Offset(0,0,BlockingMobj.Height/2),pos);
 			HitNormal = diff.unit();
 		}
+		else if ( vel.length() > 0. ) HitNormal = vel.unit();
 		if ( swwm_omnibust ) BusterWall.ProjectileBust(self,GetMissileDamage(0,0),oldvel.unit());
 		// undo the bounce, we need to hook in our own
 		vel = oldvel;
@@ -288,8 +289,8 @@ Class EvisceratorChunk : Actor
 		if ( (vel.length() > 20) && !Random[Eviscerator](0,2) )
 		{
 			let l = Spawn("ChunkImpact",pos);
-			l.angle = atan2(HitNormal.y,HitNormal.x);
-			l.pitch = asin(-HitNormal.z);
+			l.angle = atan2(RealHitNormal.y,RealHitNormal.x);
+			l.pitch = asin(-RealHitNormal.z);
 			A_StartSound("eviscerator/hith",CHAN_WEAPON,CHANF_OVERLAP,.5);
 		}
 		A_Gravity();
diff --git a/zscript/weapons/swwm_shot_fx.zsc b/zscript/weapons/swwm_shot_fx.zsc
index e256dc3dd..d8c7d80c9 100644
--- a/zscript/weapons/swwm_shot_fx.zsc
+++ b/zscript/weapons/swwm_shot_fx.zsc
@@ -1146,8 +1146,8 @@ Class TheBall : Actor
 		Speed 80;
 		Gravity 0.1;
 		BounceFactor 1.0;
-		Radius 1;
-		Height 2;
+		Radius 2;
+		Height 4;
 	}
 	override String GetObituary( Actor victim, Actor inflictor, Name mod, bool playerattack )
 	{
diff --git a/zscript/weapons/swwm_sparkyboi_fx.zsc b/zscript/weapons/swwm_sparkyboi_fx.zsc
index fec9acacc..77084c242 100644
--- a/zscript/weapons/swwm_sparkyboi_fx.zsc
+++ b/zscript/weapons/swwm_sparkyboi_fx.zsc
@@ -388,8 +388,8 @@ Class BigBiospark : Actor
 		DamageType "Plasma";
 		RenderStyle "Add";
 		Health 1200;
-		Radius 1;
-		Height 2;
+		Radius 2;
+		Height 4;
 		Speed 1;
 		BounceFactor 1.;
 		WallBounceFactor 1.;
@@ -432,8 +432,8 @@ Class BiosparkBall : Actor
 		Obituary "$O_SPARKSTER";
 		DamageType "Plasma";
 		RenderStyle "Add";
-		Radius 1;
-		Height 2;
+		Radius 2;
+		Height 4;
 		Speed 20;
 		PROJECTILE;
 		+FOILINVUL;
@@ -1730,8 +1730,8 @@ Class BiosparkCore : Actor
 		Gravity .1;
 		BounceFactor 1.;
 		WallBounceFactor 1.;
-		Radius 1;
-		Height 2;
+		Radius 2;
+		Height 4;
 		ReactionTime 25;
 	}
 	override void PostBeginPlay()