diff --git a/includes/powder.h b/includes/powder.h
index 7e95ec248..dd618fdcf 100644
--- a/includes/powder.h
+++ b/includes/powder.h
@@ -131,8 +131,7 @@
 #define PT_IRON 76
 #define PT_MORT 77
 #define PT_LIFE 78
-#define PT_DLAY 79
-// 80 - 89 Free
+
 #define PT_SPNG 90
 #define PT_RIME 91
 #define PT_FOG 92
@@ -208,8 +207,9 @@
 #define ST_SOLID 1
 #define ST_LIQUID 2
 #define ST_GAS 3
-
-
+/*
+   TODO: We should start to implement these.
+*/
 #define TYPE_PART			0x0001 //1 Powders
 #define TYPE_LIQUID			0x0002 //2 Liquids
 #define TYPE_SOLID			0x0004 //4 Solids
@@ -465,7 +465,7 @@ static const part_type ptypes[PT_NUM] =
 	{"IRON",	PIXPACK(0x707070),	0.0f,	0.00f * CFDS,	0.90f,  0.00f,  0.0f,	0.0f,	0.00f,  0.000f	* CFDS, 0,	0,		0,	1,	50,	1,	1,	100,	SC_SOLIDS,		R_TEMP+0.0f +273.15f,	251,	"Rusts with salt, can be used for electrolysis of WATR", ST_SOLID, TYPE_SOLID|PROP_CONDUCTS|PROP_LIFE_DEC|PROP_HOT_GLOW, &update_IRON},
 	{"MORT",	PIXPACK(0xE0E0E0),	0.0f,	0.00f * CFDS,	1.00f,	1.00f,	-0.99f,	0.0f,	0.01f,	0.002f	* CFDS,	0,	0,		0,	0,	0,	1,	1,	-1,		SC_CRACKER2,	R_TEMP+4.0f	+273.15f,	60,		"Steam Train.", ST_NONE, TYPE_PART, &update_MORT},
 	{"LIFE",	PIXPACK(0x0CAC00),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	0,	1,	100,	SC_LIFE,		9000.0f,				40,		"Game Of Life! B3/S23", ST_NONE, TYPE_SOLID|PROP_LIFE, NULL},
-	{"DLAY",	PIXPACK(0x753590),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	1,	1,	1,	1,	100,	SC_ELEC,		4.0f+273.15f,			0,		"Conducts with temperature-dependent delay. (use HEAT/COOL).", ST_SOLID, TYPE_SOLID|PROP_CONDUCTS|PROP_LIFE_DEC, NULL},
+	/*FREE*/{"HLIF",	PIXPACK(0xFF0000),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	0,	0,	100,	SC_LIFE,		9000.0f,				40,		"High Life! B36/S23", ST_NONE, TYPE_SOLID|PROP_LIFE, NULL},
 	/*FREE*/{"ASIM",	PIXPACK(0x0000FF),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	0,	0,	100,	SC_LIFE,		9000.0f,				40,		"Assimilation! B345/S4567", ST_NONE, TYPE_SOLID|PROP_LIFE, NULL},
 	/*FREE*/{"2x2",		PIXPACK(0xFFFF00),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	0,	0,	100,	SC_LIFE,		9000.0f,				40,		"2x2! B36/S125", ST_NONE, TYPE_SOLID|PROP_LIFE, NULL},
 	/*FREE*/{"DANI",	PIXPACK(0x00FFFF),	0.0f,	0.00f * CFDS,	0.90f,	0.00f,	0.0f,	0.0f,	0.00f,	0.000f	* CFDS,	0,	0,		0,	0,	0,	0,	0,	100,	SC_LIFE,		9000.0f,				40,		"Day and Night! B3678/S34678", ST_NONE, TYPE_SOLID|PROP_LIFE, NULL},
@@ -713,7 +713,6 @@ static part_transition ptransitions[PT_NUM] =
 	/* PBCN */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			ITH,	NT},
 	/* GPMP */ {IPL,    NT,         IPH,    NT,         ITL,    NT,         ITH,	NT},
 	/* CLST */ {IPL,	NT,			IPH,	NT,			ITL,	NT,			1256.0f,	PT_LAVA},
-	/* DLAY */ {IPL,    NT,         IPH,    NT,         ITL,    NT,         ITH,	NT},
 };
 #undef IPL
 #undef IPH
diff --git a/src/elements/sprk.c b/src/elements/sprk.c
index c95216c63..039453fa0 100644
--- a/src/elements/sprk.c
+++ b/src/elements/sprk.c
@@ -19,8 +19,6 @@ int update_SPRK(UPDATE_FUNC_ARGS) {
 			parts[i].life = 54;
 		if (ct == PT_SWCH)
 			parts[i].life = 14;
-		if (ct == PT_DLAY)
-			parts[i].temp = *((float*)(&parts[i].tmp2));
 		return 0;
 	}
 	if (ct==PT_SPRK)
@@ -130,8 +128,6 @@ int update_SPRK(UPDATE_FUNC_ARGS) {
 				if (ct==PT_INST&&rt!=PT_NSCN) conduct_sprk = 0;
 				if (ct==PT_SWCH && (rt==PT_PSCN||rt==PT_NSCN||rt==PT_WATR||rt==PT_SLTW||rt==PT_NTCT||rt==PT_PTCT||rt==PT_INWR))
 					conduct_sprk = 0;
-				if (ct==PT_DLAY && !((rt==PT_PSCN || rt==PT_NSCN) && parts[i].tmp!=(r>>8)))
-					conduct_sprk = 0;
 				if (rt==PT_QRTZ && !((ct==PT_NSCN||ct==PT_METL||ct==PT_PSCN||ct==PT_QRTZ) && (parts[r>>8].temp<173.15||pv[(y+ry)/CELL][(x+rx)/CELL]>8)))
 					conduct_sprk = 0;
 				if (rt==PT_NTCT && !(ct==PT_NSCN || ct==PT_NTCT || (ct==PT_PSCN&&parts[r>>8].temp>373.0f)))
@@ -142,8 +138,6 @@ int update_SPRK(UPDATE_FUNC_ARGS) {
 					conduct_sprk = 0;
 				if (rt==PT_INST&&ct!=PT_PSCN)
 					conduct_sprk = 0;
-				if (rt==PT_DLAY && !(ct==PT_PSCN || ct==PT_NSCN))
-					conduct_sprk = 0;
 
 				if (conduct_sprk) {
 					if (rt==PT_WATR||rt==PT_SLTW) {
@@ -162,19 +156,11 @@ int update_SPRK(UPDATE_FUNC_ARGS) {
 						}
 					}
 					else if (parts[r>>8].life==0 && (parts[i].life<3 || ((r>>8)<i && parts[i].life<4))) {
-						if (rt==PT_DLAY) {
-							parts[r>>8].life = (int)(parts[r>>8].temp - 273.15f);
-							parts[r>>8].tmp = i;
-							parts[r>>8].tmp2 = *((int*)(&parts[r>>8].temp));
-							parts[r>>8].ctype = rt;
-							part_change_type(r>>8,x+rx,y+ry,PT_SPRK);
-						} else {
-							parts[r>>8].life = 4;
-							parts[r>>8].ctype = rt;
-							part_change_type(r>>8,x+rx,y+ry,PT_SPRK);
-							if (parts[r>>8].temp+10.0f<673.0f&&!legacy_enable&&(rt==PT_METL||rt==PT_BMTL||rt==PT_BRMT||rt==PT_PSCN||rt==PT_NSCN||rt==PT_ETRD||rt==PT_NBLE||rt==PT_IRON))
-								parts[r>>8].temp = parts[r>>8].temp+10.0f;
-						}
+						parts[r>>8].life = 4;
+						parts[r>>8].ctype = rt;
+						part_change_type(r>>8,x+rx,y+ry,PT_SPRK);
+						if (parts[r>>8].temp+10.0f<673.0f&&!legacy_enable&&(rt==PT_METL||rt==PT_BMTL||rt==PT_BRMT||rt==PT_PSCN||rt==PT_NSCN||rt==PT_ETRD||rt==PT_NBLE||rt==PT_IRON))
+							parts[r>>8].temp = parts[r>>8].temp+10.0f;
 					}
 					else if (ct==PT_ETRD && parts[i].life==5)
 					{
diff --git a/src/elements/swch.c b/src/elements/swch.c
index fc9f8abbb..564241918 100644
--- a/src/elements/swch.c
+++ b/src/elements/swch.c
@@ -21,7 +21,6 @@ int update_SWCH(UPDATE_FUNC_ARGS) {
 							parts[i].life = 10;
 					}
 					else if (rt==PT_SPRK&&parts[i].life==10&&parts[r>>8].ctype!=PT_PSCN&&parts[r>>8].ctype!=PT_NSCN) {
-						if (parts[r>>8].ctype==PT_DLAY && parts[r>>8].life > 2) continue;
 						part_change_type(i,x,y,PT_SPRK);
 						parts[i].ctype = PT_SWCH;
 						parts[i].life = 4;