diff --git a/BizHawk.MultiClient/GBtools/GBGPUView.Designer.cs b/BizHawk.MultiClient/GBtools/GBGPUView.Designer.cs
index fd086f25df..6c58c51b75 100644
--- a/BizHawk.MultiClient/GBtools/GBGPUView.Designer.cs
+++ b/BizHawk.MultiClient/GBtools/GBGPUView.Designer.cs
@@ -35,16 +35,9 @@
 			this.label5 = new System.Windows.Forms.Label();
 			this.label6 = new System.Windows.Forms.Label();
 			this.groupBox1 = new System.Windows.Forms.GroupBox();
-			this.bmpViewBG = new BizHawk.MultiClient.GBtools.BmpView();
-			this.bmpViewWin = new BizHawk.MultiClient.GBtools.BmpView();
 			this.groupBox2 = new System.Windows.Forms.GroupBox();
-			this.bmpViewTiles1 = new BizHawk.MultiClient.GBtools.BmpView();
-			this.bmpViewTiles2 = new BizHawk.MultiClient.GBtools.BmpView();
 			this.groupBox3 = new System.Windows.Forms.GroupBox();
-			this.bmpViewBGPal = new BizHawk.MultiClient.GBtools.BmpView();
-			this.bmpViewSPPal = new BizHawk.MultiClient.GBtools.BmpView();
 			this.groupBox4 = new System.Windows.Forms.GroupBox();
-			this.bmpViewOAM = new BizHawk.MultiClient.GBtools.BmpView();
 			this.groupBox5 = new System.Windows.Forms.GroupBox();
 			this.hScrollBarScanline = new System.Windows.Forms.HScrollBar();
 			this.labelScanline = new System.Windows.Forms.Label();
@@ -55,6 +48,13 @@
 			this.groupBoxDetails = new System.Windows.Forms.GroupBox();
 			this.labelDetails = new System.Windows.Forms.Label();
 			this.bmpViewDetails = new BizHawk.MultiClient.GBtools.BmpView();
+			this.bmpViewOAM = new BizHawk.MultiClient.GBtools.BmpView();
+			this.bmpViewBGPal = new BizHawk.MultiClient.GBtools.BmpView();
+			this.bmpViewSPPal = new BizHawk.MultiClient.GBtools.BmpView();
+			this.bmpViewTiles1 = new BizHawk.MultiClient.GBtools.BmpView();
+			this.bmpViewTiles2 = new BizHawk.MultiClient.GBtools.BmpView();
+			this.bmpViewBG = new BizHawk.MultiClient.GBtools.BmpView();
+			this.bmpViewWin = new BizHawk.MultiClient.GBtools.BmpView();
 			this.groupBox1.SuspendLayout();
 			this.groupBox2.SuspendLayout();
 			this.groupBox3.SuspendLayout();
@@ -130,30 +130,6 @@
 			this.groupBox1.TabStop = false;
 			this.groupBox1.Text = "Tilemaps";
 			// 
-			// bmpViewBG
-			// 
-			this.bmpViewBG.BackColor = System.Drawing.Color.Black;
-			this.bmpViewBG.Location = new System.Drawing.Point(6, 32);
-			this.bmpViewBG.Name = "bmpViewBG";
-			this.bmpViewBG.Size = new System.Drawing.Size(256, 256);
-			this.bmpViewBG.TabIndex = 4;
-			this.bmpViewBG.Text = "bmpView1";
-			this.bmpViewBG.MouseEnter += new System.EventHandler(this.bmpViewBG_MouseEnter);
-			this.bmpViewBG.MouseLeave += new System.EventHandler(this.bmpViewBG_MouseLeave);
-			this.bmpViewBG.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewBG_MouseMove);
-			// 
-			// bmpViewWin
-			// 
-			this.bmpViewWin.BackColor = System.Drawing.Color.Black;
-			this.bmpViewWin.Location = new System.Drawing.Point(268, 32);
-			this.bmpViewWin.Name = "bmpViewWin";
-			this.bmpViewWin.Size = new System.Drawing.Size(256, 256);
-			this.bmpViewWin.TabIndex = 5;
-			this.bmpViewWin.Text = "bmpView2";
-			this.bmpViewWin.MouseEnter += new System.EventHandler(this.bmpViewWin_MouseEnter);
-			this.bmpViewWin.MouseLeave += new System.EventHandler(this.bmpViewWin_MouseLeave);
-			this.bmpViewWin.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewWin_MouseMove);
-			// 
 			// groupBox2
 			// 
 			this.groupBox2.Controls.Add(this.label3);
@@ -167,30 +143,6 @@
 			this.groupBox2.TabStop = false;
 			this.groupBox2.Text = "Tiles";
 			// 
-			// bmpViewTiles1
-			// 
-			this.bmpViewTiles1.BackColor = System.Drawing.Color.Black;
-			this.bmpViewTiles1.Location = new System.Drawing.Point(6, 32);
-			this.bmpViewTiles1.Name = "bmpViewTiles1";
-			this.bmpViewTiles1.Size = new System.Drawing.Size(128, 192);
-			this.bmpViewTiles1.TabIndex = 6;
-			this.bmpViewTiles1.Text = "bmpView1";
-			this.bmpViewTiles1.MouseEnter += new System.EventHandler(this.bmpViewTiles1_MouseEnter);
-			this.bmpViewTiles1.MouseLeave += new System.EventHandler(this.bmpViewTiles1_MouseLeave);
-			this.bmpViewTiles1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewTiles1_MouseMove);
-			// 
-			// bmpViewTiles2
-			// 
-			this.bmpViewTiles2.BackColor = System.Drawing.Color.Black;
-			this.bmpViewTiles2.Location = new System.Drawing.Point(140, 32);
-			this.bmpViewTiles2.Name = "bmpViewTiles2";
-			this.bmpViewTiles2.Size = new System.Drawing.Size(128, 192);
-			this.bmpViewTiles2.TabIndex = 7;
-			this.bmpViewTiles2.Text = "bmpView2";
-			this.bmpViewTiles2.MouseEnter += new System.EventHandler(this.bmpViewTiles2_MouseEnter);
-			this.bmpViewTiles2.MouseLeave += new System.EventHandler(this.bmpViewTiles2_MouseLeave);
-			this.bmpViewTiles2.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewTiles2_MouseMove);
-			// 
 			// groupBox3
 			// 
 			this.groupBox3.Controls.Add(this.label5);
@@ -204,30 +156,6 @@
 			this.groupBox3.TabStop = false;
 			this.groupBox3.Text = "Palettes";
 			// 
-			// bmpViewBGPal
-			// 
-			this.bmpViewBGPal.BackColor = System.Drawing.Color.Black;
-			this.bmpViewBGPal.Location = new System.Drawing.Point(6, 32);
-			this.bmpViewBGPal.Name = "bmpViewBGPal";
-			this.bmpViewBGPal.Size = new System.Drawing.Size(128, 64);
-			this.bmpViewBGPal.TabIndex = 10;
-			this.bmpViewBGPal.Text = "bmpView1";
-			this.bmpViewBGPal.MouseEnter += new System.EventHandler(this.bmpViewBGPal_MouseEnter);
-			this.bmpViewBGPal.MouseLeave += new System.EventHandler(this.bmpViewBGPal_MouseLeave);
-			this.bmpViewBGPal.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewBGPal_MouseMove);
-			// 
-			// bmpViewSPPal
-			// 
-			this.bmpViewSPPal.BackColor = System.Drawing.Color.Black;
-			this.bmpViewSPPal.Location = new System.Drawing.Point(140, 32);
-			this.bmpViewSPPal.Name = "bmpViewSPPal";
-			this.bmpViewSPPal.Size = new System.Drawing.Size(128, 64);
-			this.bmpViewSPPal.TabIndex = 11;
-			this.bmpViewSPPal.Text = "bmpView2";
-			this.bmpViewSPPal.MouseEnter += new System.EventHandler(this.bmpViewSPPal_MouseEnter);
-			this.bmpViewSPPal.MouseLeave += new System.EventHandler(this.bmpViewSPPal_MouseLeave);
-			this.bmpViewSPPal.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewSPPal_MouseMove);
-			// 
 			// groupBox4
 			// 
 			this.groupBox4.Controls.Add(this.bmpViewOAM);
@@ -238,17 +166,6 @@
 			this.groupBox4.TabStop = false;
 			this.groupBox4.Text = "Sprites";
 			// 
-			// bmpViewOAM
-			// 
-			this.bmpViewOAM.BackColor = System.Drawing.Color.Black;
-			this.bmpViewOAM.Location = new System.Drawing.Point(6, 19);
-			this.bmpViewOAM.Name = "bmpViewOAM";
-			this.bmpViewOAM.Size = new System.Drawing.Size(320, 16);
-			this.bmpViewOAM.TabIndex = 14;
-			this.bmpViewOAM.MouseEnter += new System.EventHandler(this.bmpViewOAM_MouseEnter);
-			this.bmpViewOAM.MouseLeave += new System.EventHandler(this.bmpViewOAM_MouseLeave);
-			this.bmpViewOAM.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewOAM_MouseMove);
-			// 
 			// groupBox5
 			// 
 			this.groupBox5.Controls.Add(this.hScrollBarScanline);
@@ -357,11 +274,94 @@
 			this.bmpViewDetails.Size = new System.Drawing.Size(64, 128);
 			this.bmpViewDetails.TabIndex = 0;
 			// 
+			// bmpViewOAM
+			// 
+			this.bmpViewOAM.BackColor = System.Drawing.Color.Black;
+			this.bmpViewOAM.Location = new System.Drawing.Point(6, 19);
+			this.bmpViewOAM.Name = "bmpViewOAM";
+			this.bmpViewOAM.Size = new System.Drawing.Size(320, 16);
+			this.bmpViewOAM.TabIndex = 14;
+			this.bmpViewOAM.MouseEnter += new System.EventHandler(this.bmpViewOAM_MouseEnter);
+			this.bmpViewOAM.MouseLeave += new System.EventHandler(this.bmpViewOAM_MouseLeave);
+			this.bmpViewOAM.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewOAM_MouseMove);
+			// 
+			// bmpViewBGPal
+			// 
+			this.bmpViewBGPal.BackColor = System.Drawing.Color.Black;
+			this.bmpViewBGPal.Location = new System.Drawing.Point(6, 32);
+			this.bmpViewBGPal.Name = "bmpViewBGPal";
+			this.bmpViewBGPal.Size = new System.Drawing.Size(128, 64);
+			this.bmpViewBGPal.TabIndex = 10;
+			this.bmpViewBGPal.Text = "bmpView1";
+			this.bmpViewBGPal.MouseEnter += new System.EventHandler(this.bmpViewBGPal_MouseEnter);
+			this.bmpViewBGPal.MouseLeave += new System.EventHandler(this.bmpViewBGPal_MouseLeave);
+			this.bmpViewBGPal.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewBGPal_MouseMove);
+			// 
+			// bmpViewSPPal
+			// 
+			this.bmpViewSPPal.BackColor = System.Drawing.Color.Black;
+			this.bmpViewSPPal.Location = new System.Drawing.Point(140, 32);
+			this.bmpViewSPPal.Name = "bmpViewSPPal";
+			this.bmpViewSPPal.Size = new System.Drawing.Size(128, 64);
+			this.bmpViewSPPal.TabIndex = 11;
+			this.bmpViewSPPal.Text = "bmpView2";
+			this.bmpViewSPPal.MouseEnter += new System.EventHandler(this.bmpViewSPPal_MouseEnter);
+			this.bmpViewSPPal.MouseLeave += new System.EventHandler(this.bmpViewSPPal_MouseLeave);
+			this.bmpViewSPPal.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewSPPal_MouseMove);
+			// 
+			// bmpViewTiles1
+			// 
+			this.bmpViewTiles1.BackColor = System.Drawing.Color.Black;
+			this.bmpViewTiles1.Location = new System.Drawing.Point(6, 32);
+			this.bmpViewTiles1.Name = "bmpViewTiles1";
+			this.bmpViewTiles1.Size = new System.Drawing.Size(128, 192);
+			this.bmpViewTiles1.TabIndex = 6;
+			this.bmpViewTiles1.Text = "bmpView1";
+			this.bmpViewTiles1.MouseEnter += new System.EventHandler(this.bmpViewTiles1_MouseEnter);
+			this.bmpViewTiles1.MouseLeave += new System.EventHandler(this.bmpViewTiles1_MouseLeave);
+			this.bmpViewTiles1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewTiles1_MouseMove);
+			// 
+			// bmpViewTiles2
+			// 
+			this.bmpViewTiles2.BackColor = System.Drawing.Color.Black;
+			this.bmpViewTiles2.Location = new System.Drawing.Point(140, 32);
+			this.bmpViewTiles2.Name = "bmpViewTiles2";
+			this.bmpViewTiles2.Size = new System.Drawing.Size(128, 192);
+			this.bmpViewTiles2.TabIndex = 7;
+			this.bmpViewTiles2.Text = "bmpView2";
+			this.bmpViewTiles2.MouseEnter += new System.EventHandler(this.bmpViewTiles2_MouseEnter);
+			this.bmpViewTiles2.MouseLeave += new System.EventHandler(this.bmpViewTiles2_MouseLeave);
+			this.bmpViewTiles2.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewTiles2_MouseMove);
+			// 
+			// bmpViewBG
+			// 
+			this.bmpViewBG.BackColor = System.Drawing.Color.Black;
+			this.bmpViewBG.Location = new System.Drawing.Point(6, 32);
+			this.bmpViewBG.Name = "bmpViewBG";
+			this.bmpViewBG.Size = new System.Drawing.Size(256, 256);
+			this.bmpViewBG.TabIndex = 4;
+			this.bmpViewBG.Text = "bmpView1";
+			this.bmpViewBG.MouseEnter += new System.EventHandler(this.bmpViewBG_MouseEnter);
+			this.bmpViewBG.MouseLeave += new System.EventHandler(this.bmpViewBG_MouseLeave);
+			this.bmpViewBG.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewBG_MouseMove);
+			// 
+			// bmpViewWin
+			// 
+			this.bmpViewWin.BackColor = System.Drawing.Color.Black;
+			this.bmpViewWin.Location = new System.Drawing.Point(268, 32);
+			this.bmpViewWin.Name = "bmpViewWin";
+			this.bmpViewWin.Size = new System.Drawing.Size(256, 256);
+			this.bmpViewWin.TabIndex = 5;
+			this.bmpViewWin.Text = "bmpView2";
+			this.bmpViewWin.MouseEnter += new System.EventHandler(this.bmpViewWin_MouseEnter);
+			this.bmpViewWin.MouseLeave += new System.EventHandler(this.bmpViewWin_MouseLeave);
+			this.bmpViewWin.MouseMove += new System.Windows.Forms.MouseEventHandler(this.bmpViewWin_MouseMove);
+			// 
 			// GBGPUView
 			// 
 			this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
 			this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-			this.ClientSize = new System.Drawing.Size(834, 555);
+			this.ClientSize = new System.Drawing.Size(834, 524);
 			this.Controls.Add(this.groupBoxDetails);
 			this.Controls.Add(this.groupBox5);
 			this.Controls.Add(this.groupBox4);
diff --git a/BizHawk.MultiClient/GBtools/GBGPUView.cs b/BizHawk.MultiClient/GBtools/GBGPUView.cs
index 7f00360a8e..bcbc579938 100644
--- a/BizHawk.MultiClient/GBtools/GBGPUView.cs
+++ b/BizHawk.MultiClient/GBtools/GBGPUView.cs
@@ -646,6 +646,51 @@ namespace BizHawk.MultiClient.GBtools
 			bmpViewDetails.Refresh();
 		}
 
+		unsafe void SpriteMouseover(int x, int y)
+		{
+			bool tall = lcdc.Bit(2);
+			x /= 8;
+			y /= 8;
+			bmpViewDetails.ChangeBitmapSize(8, tall ? 16 : 8);
+			if (bmpViewDetails.Height != bmpViewDetails.bmp.Height * 8)
+				bmpViewDetails.Height = bmpViewDetails.bmp.Height * 8;
+			var sb = new StringBuilder();
+
+			byte* oament = (byte*)oam + 4 * x;
+			int sy = oament[0];
+			int sx = oament[1];
+			int tilenum = oament[2];
+			int flags = oament[3];
+			bool hflip = flags.Bit(5);
+			bool vflip = flags.Bit(6);
+			if (tall)
+				tilenum = vflip ? tilenum | 1 : tilenum & ~1;
+			int tileoffs = tilenum * 16;
+			sb.AppendLine(string.Format("Sprite #{0} @{1:x4}", x, 4 * x + 0xfe00));
+			sb.AppendLine(string.Format("  (x,y) = ({0},{1})", sx, sy));
+			var lockdata = bmpViewDetails.bmp.LockBits(new Rectangle(0, 0, 8, tall ? 16 : 8), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
+			if (cgb)
+			{
+				sb.AppendLine(string.Format("  Tile #{0} @{2}:{1:x4}", y == 1 ? tilenum ^ 1 : tilenum, tileoffs + 0x8000, flags.Bit(3) ? 1 : 0));
+				sb.AppendLine(string.Format("  Palette {0}", flags & 7));
+				DrawTileHV((byte*)vram + tileoffs + (flags.Bit(3) ? 8192 : 0), (int*)lockdata.Scan0, lockdata.Stride / sizeof(int), (int*)sppal + 4 * (flags & 7), hflip, vflip);
+				if (tall)
+					DrawTileHV((byte*)vram + (tileoffs ^ 16) + (flags.Bit(3) ? 8192 : 0), (int*)(lockdata.Scan0 + lockdata.Stride * 8), lockdata.Stride / sizeof(int), (int*)sppal + 4 * (flags & 7), hflip, vflip);
+			}
+			else
+			{
+				sb.AppendLine(string.Format("  Tile #{0} @{1:x4}", y == 1 ? tilenum ^ 1 : tilenum, tileoffs + 0x8000));
+				sb.AppendLine(string.Format("  Palette {0}", flags.Bit(4) ? 1 : 0));
+				DrawTileHV((byte*)vram + tileoffs, (int*)lockdata.Scan0, lockdata.Stride / sizeof(int), (int*)sppal + (flags.Bit(4) ? 4 : 0), hflip, vflip);
+				if (tall)
+					DrawTileHV((byte*)vram + (tileoffs ^ 16), (int*)(lockdata.Scan0 + lockdata.Stride * 8), lockdata.Stride / sizeof(int), (int*)sppal + 4 * (flags.Bit(4) ? 4 : 0), hflip, vflip);
+			}
+			sb.AppendLine(string.Format("  Flags {0}{1}{2}", hflip ? 'H' : ' ', vflip ? 'V' : ' ', flags.Bit(7) ? 'P' : ' '));
+			bmpViewDetails.bmp.UnlockBits(lockdata);
+			labelDetails.Text = sb.ToString();
+			bmpViewDetails.Refresh();
+		}
+
 		private void bmpViewBG_MouseEnter(object sender, EventArgs e)
 		{
 			SaveFreeze();
@@ -761,7 +806,7 @@ namespace BizHawk.MultiClient.GBtools
 
 		private void bmpViewOAM_MouseMove(object sender, MouseEventArgs e)
 		{
-
+			SpriteMouseover(e.X, e.Y);
 		}
 
 		#endregion