diff --git a/source/ngc/menu.cpp b/source/ngc/menu.cpp
index e202ed7..e3320ab 100644
--- a/source/ngc/menu.cpp
+++ b/source/ngc/menu.cpp
@@ -17,9 +17,7 @@
 #include <sys/stat.h>
 
 #ifdef HW_RVL
-extern "C" {
 #include <di/di.h>
-}
 #endif
 
 #include "vba.h"
diff --git a/source/ngc/tbtime.c b/source/ngc/tbtime.c
deleted file mode 100644
index d41eba0..0000000
--- a/source/ngc/tbtime.c
+++ /dev/null
@@ -1,15 +0,0 @@
-#include "tbtime.h"
-
-unsigned long
-tb_diff_msec (tb_t * end, tb_t * start)
-{
-  unsigned long upper, lower;
-  upper = end->u - start->u;
-  if (start->l > end->l)
-    upper--;
-  lower = end->l - start->l;
-  return ((upper * ((unsigned long) 0x80000000 / (TB_CLOCK / 2000))) +
-          (lower / (TB_CLOCK / 1000)));
-}
-
-
diff --git a/source/ngc/tbtime.h b/source/ngc/tbtime.h
deleted file mode 100644
index 779702e..0000000
--- a/source/ngc/tbtime.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/****************************************************************************
-* tmbinc msec timer
-****************************************************************************/
-#ifndef __TMBINCTIMER__
-#define __TMBINCTIMER__
-#ifdef HW_RVL
-#define TB_CLOCK  60750000 //WII
-#else
-#define TB_CLOCK  40500000
-#endif
-#define mftb(rval) ({unsigned long u; do { \
-         asm volatile ("mftbu %0" : "=r" (u)); \
-         asm volatile ("mftb %0" : "=r" ((rval)->l)); \
-         asm volatile ("mftbu %0" : "=r" ((rval)->u)); \
-         } while(u != ((rval)->u)); })
-
-typedef struct
-  {
-    unsigned long l, u;
-  }
-tb_t;
-
-unsigned long tb_diff_msec (tb_t * end, tb_t * start);
-
-#endif
-
diff --git a/source/ngc/vba.cpp b/source/ngc/vba.cpp
index efeca47..d47504e 100644
--- a/source/ngc/vba.cpp
+++ b/source/ngc/vba.cpp
@@ -17,9 +17,7 @@
 #include <wiiuse/wpad.h>
 
 #ifdef HW_RVL
-extern "C" {
 #include <di/di.h>
-}
 #endif
 
 #include "FreeTypeGX.h"
diff --git a/source/ngc/vbaconfig.cpp b/source/ngc/vbaconfig.cpp
index a5c3502..6543a44 100644
--- a/source/ngc/vbaconfig.cpp
+++ b/source/ngc/vbaconfig.cpp
@@ -34,7 +34,7 @@ void FixInvalidSettings()
 		GCSettings.MusicVolume = 40;
 	if(!(GCSettings.SFXVolume >= 0 && GCSettings.SFXVolume <= 100))
 		GCSettings.SFXVolume = 40;
-	if(!(GCSettings.render >= 0 && GCSettings.render < 2))
+	if(!(GCSettings.render >= 0 && GCSettings.render < 3))
 		GCSettings.render = 1;
 	if(!(GCSettings.videomode >= 0 && GCSettings.videomode < 5))
 		GCSettings.videomode = 0;
diff --git a/source/ngc/vbasupport.cpp b/source/ngc/vbasupport.cpp
index 23480b4..43e3ef4 100644
--- a/source/ngc/vbasupport.cpp
+++ b/source/ngc/vbasupport.cpp
@@ -15,6 +15,11 @@
 #include <wiiuse/wpad.h>
 #include <malloc.h>
 
+extern "C" {
+long long gettime();
+u32 diff_usec(long long start,long long end);
+}
+
 #include "pngu/pngu.h"
 
 #include "unzip.h"
@@ -46,16 +51,7 @@
 #include "gcunzip.h"
 #include "gamesettings.h"
 
-extern "C"
-{
-#include "tbtime.h"
-long long gettime();
-u32 diff_usec(long long start,long long end);
-}
-
-static tb_t start, now;
-
-u32 loadtimeradjust;
+static u32 start;
 int cartridgeType = 0;
 u32 RomIdCode;
 int SunBars = 3;
@@ -114,8 +110,8 @@ struct EmulatedSystem emulator =
 ****************************************************************************/
 u32 systemGetClock( void )
 {
-	mftb(&now);
-	return tb_diff_msec(&now, &start) - loadtimeradjust;
+	u32 now = gettime();
+	return diff_usec(start, now) / 1000;
 }
 
 void systemFrame() {}
@@ -784,7 +780,7 @@ static void gbApplyPerImagePreferences()
 		else if (strcmp(title, "TMNT3") == 0)
 			RomIdCode = TMNT3;
 	}
-	// look for matching palettes if a monochrome gameboy game 
+	// look for matching palettes if a monochrome gameboy game
 	// (or if a Super Gameboy game, but the palette will be ignored later in that case)
 	int snum = -1;
 	if ((Colour != 0x80) && (Colour != 0xC0)) {
@@ -1095,7 +1091,7 @@ bool LoadVBAROM(int method)
 		lastTime = systemFrameSkip = 0;
 
 		// Start system clock
-		mftb(&start);
+		start = gettime();
 
 		return true;
 	}
diff --git a/source/ngc/vbasupport.h b/source/ngc/vbasupport.h
index de5bf6f..fd00773 100644
--- a/source/ngc/vbasupport.h
+++ b/source/ngc/vbasupport.h
@@ -14,7 +14,6 @@
 #include "System.h"
 
 extern struct EmulatedSystem emulator;
-extern u32 loadtimeradjust;
 extern int cartridgeType;
 extern int SunBars;
 extern u32 RomIdCode;
diff --git a/source/ngc/vmmem.cpp b/source/ngc/vmmem.cpp
index 69b1786..9f7f25a 100644
--- a/source/ngc/vmmem.cpp
+++ b/source/ngc/vmmem.cpp
@@ -27,10 +27,6 @@
 #include "filebrowser.h"
 #include "gcunzip.h"
 
-extern "C" {
-#include "tbtime.h"
-}
-
 #define MEM_BAD	0xff
 #define MEM_VM  0x01
 #define MEM_UN  0x80
@@ -40,7 +36,6 @@ unsigned int MEM2Storage = 0x91000000;
 int GBAROMSize = 0;
 
 #ifdef USE_VM
-//extern u32 loadtimeradjust;
 
 /** Setup VM to use small 16kb windows **/
 #define VMSHIFTBITS 14
@@ -362,11 +357,8 @@ int VMCPULoadROM(int method)
 static void VMNewPage( int pageid )
 {
 	int res;
-	//tb_t start,end;
 	char msg[512];
 
-	//mftb(&start);
-
 	res = fseek( romfile, pageid << VMSHIFTBITS, SEEK_SET );
 	if (res) // fseek returns non-zero on a failure
 	{
@@ -379,20 +371,6 @@ static void VMNewPage( int pageid )
 	VMAllocate( pageid );
 
 	res = fread( vmpage[pageid].pageptr, 1, 1 << VMSHIFTBITS, romfile );
-	if ( res != ( 1 << VMSHIFTBITS ) )
-	{
-		// Homebrew ROMS may not have the expected amount of data
-		// and then end up here - but they still work - so we won't throw an error
-
-		/*sprintf(msg, "Error reading! %d bytes only\n", res);
-		InfoPrompt(msg);
-		VMClose();
-		ExitApp();*/
-	}
-
-	//mftb(&end);
-
-	//loadtimeradjust += tb_diff_msec(&end, &start);
 }
 
 /****************************************************************************