--- a/scn2k/scn2k_grpimpl.cc
+++ b/scn2k/scn2k_grpimpl.cc
@@ -155,6 +155,7 @@ void Grp::impl_recFill(Cmd& cmd) {
 }
 
 void Grp::impl_recCopy(Cmd& cmd) {
+	//TODO: Handle forms 0 and 1
 	int sx = cmd.args[0].value;
 	int sy = cmd.args[1].value;
 	int w = cmd.args[2].value;
@@ -172,7 +173,6 @@ void Grp::impl_recCopy(Cmd& cmd) {
 		// if (dest == 0) screen->ReBlit(Rect(dx,dy,dx+w,dy+h));
 		cmd.cmd_type = CMD_SAVECMDGRP;
 	}
-
 	else if (cmd.cmd4 == 3) { // alpha つきcopy
 		unsigned char alpha;
 		if (cmd.args[8].value < 0) alpha = 0;
@@ -191,7 +191,7 @@ void Grp::impl_recCopy(Cmd& cmd) {
 }
 
 void Grp::impl_recAdd(Cmd& cmd) {
-	if (cmd.cmd4 == 3) { // saturate mode で alpha 付き copy
+	if (cmd.cmd4 == 3) { // add mode で alpha 付き copy
 		int sx = cmd.args[0].value;
 		int sy = cmd.args[1].value;
 		int w = cmd.args[2].value;
@@ -205,15 +205,15 @@ void Grp::impl_recAdd(Cmd& cmd) {
 		if (cmd.args[8].value < 0) alpha = 0;
 		else if (cmd.args[8].value > 255) alpha = 255;
 		else alpha = cmd.args[8].value;
-		eprintf("copy surface w/ saturate %d:(%d,%d) size(%d,%d) -> %d:(%d,%d)\n",src,sx,sy,w,h,dest,dx,dy);
+		eprintf("copy surface w/ add %d:(%d,%d) size(%d,%d) -> %d:(%d,%d)\n",src,sx,sy,w,h,dest,dx,dy);
 		if (src == dest) {
 			DSurfaceMove(Ssurface(src), rect, Dsurface(WORKPDT), rect);
 			src = WORKPDT;
 		}
 		if (alpha != 0) {
-			// saturate mode : screen (picture) を一時的に作成
+			// add mode : screen (picture) を一時的に作成
 			PicBase* screen_tmp = parent.create_leaf(Rect(0, 0, parent.Width(), parent.Height()), 0);
-			screen_tmp->SetSurface(Ssurface(src), 0, 0, PicBase::BLIT_SATURATE);
+			screen_tmp->SetSurface(Ssurface(src), 0, 0, PicBase::BLIT_ADD);
 			screen_tmp->SetSurfaceRect(rect);
 			screen_tmp->Move(dx, dy);
 			screen_tmp->SetSurfaceAlpha(&alpha, Rect(0,0,1,1));
@@ -348,7 +348,7 @@ void Grp::impl_createObj(Cmd& cmd) {
 		base_argc = 1;
 
 	if (cmd.cmd3 == 1000) { /* ファイル名設定 */
-		g->gtype = GrpObj::FILE; //FIXME: Strange thing in the main menu; that happens with objComposite
+		g->gtype = GrpObj::FILE;
 		string name = cmd.Str(cmd.args[base_argc + 1]);
 		if (name.find('?') != -1) {//TODO
 			//Used for shading, with DAT/tcdata.tcc or other filename provided by #TONECURVE_FILENAME
@@ -516,12 +516,11 @@ void Grp::impl_objColour(Cmd& cmd) {
 void Grp::impl_objComposite(Cmd& cmd) {//FIXME
 	int base_arg = 0;
 	GrpObj* g = GetGraphicObjVarMode(cmd, base_arg, (cmd.cmd2 == 0x51));
-
 	if (cmd.args[base_arg + 1].value == 1) {
-		g->attr = GrpObj::Attribute(g->attr | GrpObj::SATURATE);
+		g->attr = GrpObj::Attribute(g->attr | GrpObj::BLIT_ADD);
 		cmd.clear();
 	} else if (cmd.args[base_arg + 1].value == 0) {
-		g->attr = GrpObj::Attribute(g->attr & (~GrpObj::SATURATE));
+		g->attr = GrpObj::Attribute(g->attr & (~GrpObj::BLIT_ADD));
 		cmd.clear();
 	}
 	g->SetUpdate();
@@ -765,3 +764,4 @@ void Grp::impl_movPlay(Cmd& cmd) {
 		cmd.clear();
 	}
 }
+