diff --git a/zscript/swwm_ammo.zsc b/zscript/swwm_ammo.zsc
index 59446e2d4..5502cab9c 100644
--- a/zscript/swwm_ammo.zsc
+++ b/zscript/swwm_ammo.zsc
@@ -842,7 +842,7 @@ Class AmmoFabricator : Inventory abstract
 		if ( pickup && !shouldautouse ) return false;
 		if ( FabricateAmmo() )
 		{
-			Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
+			if ( pickup && ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 			return true;
 		}
 		return false;
diff --git a/zscript/swwm_inventory.zsc b/zscript/swwm_inventory.zsc
index 061bde6fb..08df25841 100644
--- a/zscript/swwm_inventory.zsc
+++ b/zscript/swwm_inventory.zsc
@@ -110,8 +110,8 @@ Class SWWMSpareArmor : Inventory abstract
 		let cur = Owner.FindInventory(giveme);
 		if ( !cur || (!pickup && (cur.Amount < cur.MaxAmount)) || (GetDefaultByType(giveme).Amount+cur.Amount <= cur.MaxAmount) )
 		{
+			if ( pickup && ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 			Owner.GiveInventory(giveme,GetDefaultByType(giveme).Amount);
-			if ( UseSound ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA,CHANF_DEFAULT,.6);
 			SWWMHandler.DoFlash(Owner,Color(48,96,255,64),5);
 			return true;
 		}
@@ -148,7 +148,7 @@ Class SWWMHealth : Inventory abstract
 		else shouldautouse = CVar.GetCVar('swwm_autousehealth',Owner.player).GetBool();
 		if ( pickup && !shouldautouse ) return false;
 		if ( Owner.Health >= GetDefaultByType(giveme).MaxAmount ) return false;
-		if ( UseSound ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA,CHANF_DEFAULT,.6);
+		if ( pickup && ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 		SWWMHandler.DoFlash(Owner,Color(48,64,128,255),5);
 		Owner.GiveInventory(giveme,GetDefaultByType(giveme).Amount);
 		SWWMScoreObj.Spawn(GetDefaultByType(giveme).Amount,Owner.Vec3Offset(FRandom[ScoreBits](-8,8),FRandom[ScoreBits](-8,8),FRandom[ScoreBits](-8,8)+Owner.Height/2),Font.CR_GREEN);
@@ -169,10 +169,11 @@ Class SWWMHealth : Inventory abstract
 	{
 		if ( passive && (Owner.Health-damage <= 0) )
 		{
-			if ( UseSound ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA,CHANF_DEFAULT,.6);
+			newdamage = damage;
+			if ( ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 			while ( (Amount > 0) && (newdamage > 0) )
 			{
-				newdamage = damage-GetDefaultByType(giveme).Amount;
+				newdamage = newdamage-GetDefaultByType(giveme).Amount;
 				if ( newdamage < 0 ) Owner.GiveBody(-newdamage,GetDefaultByType(giveme).MaxAmount);
 				newdamage = max(0,newdamage);
 				AutoUseExtra();
diff --git a/zscript/swwm_player.zsc b/zscript/swwm_player.zsc
index 0331cd1fc..b4fc8e587 100644
--- a/zscript/swwm_player.zsc
+++ b/zscript/swwm_player.zsc
@@ -1120,18 +1120,25 @@ Class Demolitionist : PlayerPawn
 	}
 	override bool UseInventory( Inventory item )
 	{
-		if ( !player ) return Super.UseInventory(item);
-		bool res = Super.UseInventory(item);
-		if ( CheckLocalView() )
+		let itemtype = item.GetClass();
+		if ( (player.cheats&CF_TOTALLYFROZEN) || isFrozen() ) return false;
+		if ( !Actor.UseInventory(item) )
 		{
-			if ( !res && !(item is 'Weapon') ) A_StartSound("menu/noinvuse",CHAN_ITEM);
-			if ( item is 'PuzzleItem' )
+			if ( player == players[consoleplayer] )
 			{
-				if ( res ) SWWMHandler.AddOneliner("puzzsucc",2,10);
-				else SWWMHandler.AddOneliner("puzzfail",2,20);
+				if ( !(item is 'Weapon') )
+					A_StartSound("menu/noinvuse",CHAN_ITEMEXTRA);
+				if ( item is 'PuzzleItem' )
+					SWWMHandler.AddOneliner("puzzfail",2,20);
 			}
+			return false;
 		}
-		return res;
+		// use sounds of big powerups are heard by other players
+		if ( (player == players[consoleplayer]) || item.bBIGPOWERUP )
+			A_StartSound(item.UseSound,CHAN_ITEMEXTRA);
+		if ( (player == players[consoleplayer]) && (item is 'PuzzleItem') )
+			SWWMHandler.AddOneliner("puzzsucc",2,10);
+		return true;
 	}
 	void A_Footstep( double yofs, bool run = false, double vol = .3 )
 	{
diff --git a/zscript/swwm_powerup.zsc b/zscript/swwm_powerup.zsc
index 34e8bede3..f73aafcb6 100644
--- a/zscript/swwm_powerup.zsc
+++ b/zscript/swwm_powerup.zsc
@@ -13,7 +13,6 @@ Class GrilledCheeseSandwich : Inventory
 	{
 		SWWMHandler.DoFlash(Owner,Color(64,255,255,64),10);
 		Owner.A_QuakeEx(9,9,9,3,0,1,"",QF_RELATIVE|QF_SCALEDOWN,rollIntensity:1.);
-		Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 		Owner.GiveBody(1000,1000);
 		SWWMScoreObj.Spawn(1000,Owner.Vec3Offset(FRandom[ScoreBits](-8,8),FRandom[ScoreBits](-8,8),FRandom[ScoreBits](-8,8)+Owner.Height/2),Font.CR_GREEN);
 		let n = Owner.FindInventory("ArmorNugget");
@@ -33,6 +32,7 @@ Class GrilledCheeseSandwich : Inventory
 	{
 		if ( pickup && !deathmatch ) return false;
 		if ( Owner.Health >= 1000 ) return false;
+		if ( pickup && ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 		DoTheThing();
 		return true;
 	}
@@ -41,6 +41,7 @@ Class GrilledCheeseSandwich : Inventory
 		if ( passive && (Owner.Health-damage <= 0) && (Amount > 0) )
 		{
 			newdamage = 0;
+			if ( (Owner.player == players[consoleplayer]) || bBigPowerup ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 			DoTheThing();
 			Amount--;
 		}
@@ -226,7 +227,7 @@ Class GhostArtifact : Inventory
 	override bool Use( bool pickup )
 	{
 		if ( pickup && !deathmatch ) return false;
-		Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
+		if ( pickup && ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 		let g = GhostPower(Owner.FindInventory("GhostPower"));
 		if ( g ) g.EffectTics = g.default.EffectTics;
 		else Owner.GiveInventory("GhostPower",1);
@@ -351,7 +352,7 @@ Class GravitySuppressor : Inventory
 	override bool Use( bool pickup )
 	{
 		if ( pickup && !deathmatch ) return false;
-		Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
+		if ( pickup && ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 		let g = GravityPower(Owner.FindInventory("GravityPower"));
 		if ( g ) g.EffectTics = g.default.EffectTics;
 		else Owner.GiveInventory("GravityPower",1);
@@ -539,7 +540,7 @@ Class FuckingInvinciball : Inventory
 	override bool Use( bool pickup )
 	{
 		if ( pickup && !deathmatch ) return false;
-		Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
+		if ( pickup && ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 		Owner.A_StartSound("misc/sundowner",CHAN_POWERUPEXTRA);
 		let i = InvinciballPower(Owner.FindInventory("InvinciballPower"));
 		if ( i )
@@ -745,7 +746,7 @@ Class Ragekit : Inventory
 	override bool Use( bool pickup )
 	{
 		if ( pickup && !deathmatch ) return false;
-		Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
+		if ( pickup && ((Owner.player == players[consoleplayer]) || bBigPowerup) ) Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
 		let r = RagekitPower(Owner.FindInventory("RagekitPower"));
 		if ( r )
 		{
@@ -798,7 +799,7 @@ Class Omnisight : Inventory
 	{
 		if ( !level.allmap )
 		{
-			Owner.A_StartSound(UseSound,CHAN_ITEMEXTRA);
+			Owner.A_StartSound("powerup/omnisight",CHAN_ITEMEXTRA);
 			level.allmap = true;
 		}
 		// not used up, must be kept for the targetting features to work
@@ -807,7 +808,6 @@ Class Omnisight : Inventory
 	Default
 	{
 		Tag "$T_OMNISIGHT";
-		Inventory.UseSound "powerup/omnisight";
 		Inventory.PickupSound "misc/p_pkup";
 		Inventory.PickupMessage "$I_OMNISIGHT";
 		Inventory.MaxAmount 1;