diff --git a/src/burn/drivers/misc_post90s/d_esd16.cpp b/src/burn/drivers/misc_post90s/d_esd16.cpp
index 8a073576e..80ea1eee0 100644
--- a/src/burn/drivers/misc_post90s/d_esd16.cpp
+++ b/src/burn/drivers/misc_post90s/d_esd16.cpp
@@ -896,6 +896,7 @@ static INT32 DrvExit()
 	MSM6295Exit(0);
 	BurnYM3812Exit();
 	SekExit();
+	ZetExit();
 	GenericTilesExit();
 
 	BurnFree (AllMem);
diff --git a/src/burn/drivers/misc_post90s/d_kaneko16.cpp b/src/burn/drivers/misc_post90s/d_kaneko16.cpp
index efdb061dc..3541222f2 100644
--- a/src/burn/drivers/misc_post90s/d_kaneko16.cpp
+++ b/src/burn/drivers/misc_post90s/d_kaneko16.cpp
@@ -3612,6 +3612,7 @@ static INT32 Kaneko16Exit()
 	GenericTilesExit();
 
 	BurnFree(Mem);
+	BurnFree(spritelist.first_sprite);
 	
 	Kaneko16NumTiles = 0;
 	Kaneko16NumTiles2 = 0;
diff --git a/src/burn/drivers/misc_post90s/d_powerins.cpp b/src/burn/drivers/misc_post90s/d_powerins.cpp
index 1eff16254..28f65cde5 100644
--- a/src/burn/drivers/misc_post90s/d_powerins.cpp
+++ b/src/burn/drivers/misc_post90s/d_powerins.cpp
@@ -540,13 +540,15 @@ void __fastcall powerinsZ80Out(UINT16 p, UINT8 v)
 {
 	switch (p & 0x0FF) {
 		case 0x00:
-			if ( game_drv == GAME_POWERINS )
+			if ( game_drv == GAME_POWERINS ) {
 				BurnYM2203Write(0, 0, v);
+			}
 			break;
 
 		case 0x01:
-			if ( game_drv == GAME_POWERINS )
+			if ( game_drv == GAME_POWERINS ) {
 				BurnYM2203Write(0, 1, v);
+			}
 			break;
 
 		case 0x80:
@@ -1074,7 +1076,7 @@ static INT32 powerinsFrame()
 		}
 
 		SekSetIRQLine(4, SEK_IRQSTATUS_AUTO);
-	}	
+	}
 
 	SekClose();
 	
diff --git a/src/burn/drivers/misc_post90s/d_seta2.cpp b/src/burn/drivers/misc_post90s/d_seta2.cpp
index 9f79cc662..8f188798a 100644
--- a/src/burn/drivers/misc_post90s/d_seta2.cpp
+++ b/src/burn/drivers/misc_post90s/d_seta2.cpp
@@ -2710,7 +2710,7 @@ static INT32 grdiansExit()
 		EEPROMExit();
 	}
 
-	BurnGunExit();
+	if (nBurnGunNumPlayers) BurnGunExit();
 	
 	HasNVRam = 0;
 
@@ -3197,6 +3197,8 @@ static INT32 grdiansScan(INT32 nAction,INT32 *pnMin)
 		BurnAcb(&ba);
 	}
 	
+#if 0
+	// This is causing crashes
 	if (nAction & ACB_NVRAM && HasNVRam) {
 		memset(&ba, 0, sizeof(ba));
 		ba.Data = RamNV;
@@ -3204,6 +3206,7 @@ static INT32 grdiansScan(INT32 nAction,INT32 *pnMin)
 		ba.szName = "Backup Ram";
 		BurnAcb(&ba);
 	}
+#endif
 
 	if (nAction & ACB_DRIVER_DATA) {
 
diff --git a/src/burn/drivers/misc_post90s/d_tecmosys.cpp b/src/burn/drivers/misc_post90s/d_tecmosys.cpp
index e7c2381de..981e604f4 100644
--- a/src/burn/drivers/misc_post90s/d_tecmosys.cpp
+++ b/src/burn/drivers/misc_post90s/d_tecmosys.cpp
@@ -1047,7 +1047,9 @@ static INT32 DrvFrame()
 	nCyclesTotal[1] = (INT32)((INT64)nCyclesTotal[1] * nBurnCPUSpeedAdjust / 0x0100);
 
 	SekOpen(0);
+#ifdef ENABLE_SOUND_HARDWARE
 	ZetOpen(0);
+#endif
 
 	vblank = 1;
 
diff --git a/src/burn/drivers/misc_post90s/d_tumbleb.cpp b/src/burn/drivers/misc_post90s/d_tumbleb.cpp
index beaea725c..638a1ef3f 100644
--- a/src/burn/drivers/misc_post90s/d_tumbleb.cpp
+++ b/src/burn/drivers/misc_post90s/d_tumbleb.cpp
@@ -2941,7 +2941,7 @@ static void SemicomMapZ80()
 	ZetClose();
 }
 
-void SemicomYM2151IrqHandler(INT32 Irq)
+static void SemicomYM2151IrqHandler(INT32 Irq)
 {
 	if (Irq) {
 		ZetSetIRQLine(0xff, ZET_IRQSTATUS_ACK);
@@ -2976,7 +2976,9 @@ static INT32 DrvInit(bool bReset, INT32 SpriteRamSize, INT32 SpriteMask, INT32 S
 	if (DrvHasYM2151) {
 		if (!DrvYM2151Freq) DrvYM2151Freq = 3427190;
 		BurnYM2151Init(DrvYM2151Freq, 25.0);
-		if (DrvHasZ80) BurnYM2151SetIrqHandler(&SemicomYM2151IrqHandler);
+		if (DrvHasZ80) { 
+			BurnYM2151SetIrqHandler(&SemicomYM2151IrqHandler);
+		}
 	}
 	
 	// Setup the OKIM6295 emulation
@@ -3212,6 +3214,7 @@ static INT32 FncywldInit()
 	INT32 nRet;
 	
 	DrvHasYM2151 = 1;
+	DrvHasZ80 = 0;
 	DrvYM2151Freq = 32220000 / 9;
 	DrvLoadRoms = FncywldLoadRoms;
 	DrvMap68k = FncywldMap68k;
@@ -3502,6 +3505,12 @@ static INT32 DrvExit()
 	return 0;
 }
 
+static INT32 JumppopExit()
+{
+	BurnYM3812Exit();
+	return DrvExit();
+}
+
 static inline UINT8 pal4bit(UINT8 bits)
 {
 	bits &= 0x0f;
@@ -4636,6 +4645,6 @@ struct BurnDriver BurnDrvJumppop = {
 	NULL, NULL, NULL, NULL,
 	BDF_GAME_WORKING, 2, HARDWARE_MISC_POST90S, GBF_PLATFORM, 0,
 	NULL, JumppopRomInfo, JumppopRomName, NULL, NULL, JumppopInputInfo, JumppopDIPInfo,
-	JumppopInit, DrvExit, JumppopFrame, NULL, DrvScan,
+	JumppopInit, JumppopExit, JumppopFrame, NULL, DrvScan,
 	NULL, 0x400, 320, 240, 4, 3
 };
diff --git a/src/burn/drivers/misc_pre90s/d_mitchell.cpp b/src/burn/drivers/misc_pre90s/d_mitchell.cpp
index fff671754..f39501a68 100644
--- a/src/burn/drivers/misc_pre90s/d_mitchell.cpp
+++ b/src/burn/drivers/misc_pre90s/d_mitchell.cpp
@@ -2609,10 +2609,10 @@ static INT32 BlockblInit()
 	return 0;
 }
 
-static INT32 DrvExit()
+static INT32 CommonExit()
 {
 	ZetExit();
-	BurnYM2413Exit();
+		
 	MSM6295Exit(0);
 	if (DrvHasEEPROM) EEPROMExit();
 	
@@ -2636,10 +2636,17 @@ static INT32 DrvExit()
 	DrvNVRamAddress = 0;
 	DrvDialSelected = 0;
 	DrvSoundLatch = 0;
-
+	
 	return 0;
 }
 
+static INT32 DrvExit()
+{
+	BurnYM2413Exit();
+
+	return CommonExit();
+}
+
 static inline UINT8 pal4bit(UINT8 bits)
 {
 	bits &= 0x0f;
@@ -3175,7 +3182,7 @@ struct BurnDriver BurnDrvMstworld = {
 	NULL, NULL, NULL, NULL,
 	BDF_GAME_WORKING, 2, HARDWARE_MISC_POST90S, GBF_PUZZLE, 0,
 	NULL, MstworldRomInfo, MstworldRomName, NULL, NULL, MstworldInputInfo, MstworldDIPInfo,
-	MstworldInit, DrvExit, MstworldFrame, NULL, MstworldScan,
+	MstworldInit, CommonExit, MstworldFrame, NULL, MstworldScan,
 	NULL, 0x800, 384, 240, 4, 3
 };