diff --git a/src/acs/call-funcs.cpp b/src/acs/call-funcs.cpp
index 24170bf41..25af308f7 100644
--- a/src/acs/call-funcs.cpp
+++ b/src/acs/call-funcs.cpp
@@ -40,6 +40,7 @@
 #include "../m_cond.h"
 #include "../r_skins.h"
 #include "../k_battle.h"
+#include "../k_grandprix.h"
 #include "../k_podium.h"
 #include "../k_bot.h"
 #include "../z_zone.h"
@@ -680,6 +681,12 @@ bool CallFunc_DialogueWaitDismiss(ACSVM::Thread *thread, const ACSVM::Word *argV
 	(void)argV;
 	(void)argC;
 
+	// TODO when we move away from g_dialogue
+	if (netgame)
+	{
+		return false;
+	}
+
 	g_dialogue.SetDismissable(true);
 
 	thread->state = {
@@ -702,6 +709,12 @@ bool CallFunc_DialogueWaitText(ACSVM::Thread *thread, const ACSVM::Word *argV, A
 	(void)argV;
 	(void)argC;
 
+	// TODO when we move away from g_dialogue
+	if (netgame)
+	{
+		return false;
+	}
+
 	g_dialogue.SetDismissable(false);
 
 	thread->state = {
@@ -1699,6 +1712,57 @@ bool CallFunc_TimeAttack(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::
 	return false;
 }
 
+/*--------------------------------------------------
+	bool CallFunc_GrandPrix(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC)
+
+		Returns if a Grand Prix is active.
+--------------------------------------------------*/
+bool CallFunc_GrandPrix(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC)
+{
+	(void)argV;
+	(void)argC;
+
+	thread->dataStk.push(grandprixinfo.gp);
+	return false;
+}
+
+/*--------------------------------------------------
+	bool CallFunc_GetGrabbedSprayCan(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC)
+
+		Returns the level's associated Spray Can, if grabbed.
+--------------------------------------------------*/
+bool CallFunc_GetGrabbedSprayCan(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC)
+{
+	Environment *env = &ACSEnv;
+
+	(void)argV;
+	(void)argC;
+
+	if (netgame == false // cans are per-player and completely unsyncable
+	&& gamemap-1 < basenummapheaders)
+	{
+		// See also P_SprayCanInit
+		UINT16 can_id = mapheaderinfo[gamemap-1]->cache_spraycan;
+
+		if (can_id < gamedata->numspraycans)
+		{
+			UINT16 col = gamedata->spraycans[can_id].col;
+
+			thread->dataStk.push(~env->getString( skincolors[col].name )->idx);
+			return false;
+		}
+
+		if (gamedata->gotspraycans >= gamedata->numspraycans)
+		{
+			thread->dataStk.push(~env->getString( "_Completed" )->idx);
+			return false;
+		}
+	}
+
+	thread->dataStk.push(0);
+	return false;
+}
+
 /*--------------------------------------------------
 	bool CallFunc_PodiumPosition(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC)
 
@@ -1925,6 +1989,12 @@ bool CallFunc_DialogueSetSpeaker(ACSVM::Thread *thread, const ACSVM::Word *argV,
 
 	(void)argC;
 
+	// TODO when we move away from g_dialogue
+	if (netgame)
+	{
+		return false;
+	}
+
 	map = thread->scopeMap;
 
 	skinStr = map->getString(argV[0]);
@@ -1963,6 +2033,12 @@ bool CallFunc_DialogueSetCustomSpeaker(ACSVM::Thread *thread, const ACSVM::Word
 
 	(void)argC;
 
+	// TODO when we move away from g_dialogue
+	if (netgame)
+	{
+		return false;
+	}
+
 	map = thread->scopeMap;
 
 	nametagStr = map->getString(argV[0]);
@@ -2044,6 +2120,12 @@ bool CallFunc_DialogueNewText(ACSVM::Thread *thread, const ACSVM::Word *argV, AC
 
 	(void)argC;
 
+	// TODO when we move away from g_dialogue
+	if (netgame)
+	{
+		return false;
+	}
+
 	map = thread->scopeMap;
 
 	textStr = map->getString(argV[0]);
diff --git a/src/acs/call-funcs.hpp b/src/acs/call-funcs.hpp
index 48ce72e84..86af95f15 100644
--- a/src/acs/call-funcs.hpp
+++ b/src/acs/call-funcs.hpp
@@ -81,6 +81,8 @@ bool CallFunc_LowestLap(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::W
 bool CallFunc_EncoreMode(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
 bool CallFunc_BreakTheCapsules(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
 bool CallFunc_TimeAttack(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
+bool CallFunc_GrandPrix(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
+bool CallFunc_GetGrabbedSprayCan(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
 
 bool CallFunc_PodiumPosition(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
 bool CallFunc_PodiumFinish(ACSVM::Thread *thread, const ACSVM::Word *argV, ACSVM::Word argC);
diff --git a/src/acs/environment.cpp b/src/acs/environment.cpp
index ad0c3e106..796abeceb 100644
--- a/src/acs/environment.cpp
+++ b/src/acs/environment.cpp
@@ -165,6 +165,8 @@ Environment::Environment()
 	addFuncDataACS0( 310, addCallFunc(CallFunc_BreakTheCapsules));
 	addFuncDataACS0( 311, addCallFunc(CallFunc_TimeAttack));
 	addFuncDataACS0( 312, addCallFunc(CallFunc_ThingCount));
+	addFuncDataACS0( 313, addCallFunc(CallFunc_GrandPrix));
+	addFuncDataACS0( 314, addCallFunc(CallFunc_GetGrabbedSprayCan));
 
 	addFuncDataACS0( 500, addCallFunc(CallFunc_CameraWait));
 	addFuncDataACS0( 501, addCallFunc(CallFunc_PodiumPosition));
@@ -299,6 +301,12 @@ bool Environment::checkTag(ACSVM::Word type, ACSVM::Word tag)
 
 		case ACS_TAGTYPE_DIALOGUE:
 		{
+			// TODO when we move away from g_dialogue
+			if (netgame)
+			{
+				return true;
+			}
+
 			if (tag == 0) // cheeky reuse
 			{
 				// wait for dismissal
diff --git a/src/k_dialogue.cpp b/src/k_dialogue.cpp
index e75e18a4d..7f3a03b18 100644
--- a/src/k_dialogue.cpp
+++ b/src/k_dialogue.cpp
@@ -157,9 +157,20 @@ void Dialogue::WriteText(void)
 
 	while (textTimer <= 0 && !textDest.empty())
 	{
-		char c = textDest.back();
+		char c = textDest.back(), nextc = '\n';
 		text.push_back(c);
 
+		textDest.pop_back();
+
+		if (c & 0x80)
+		{
+			// Color code support
+			continue;
+		}
+
+		if (!textDest.empty())
+			nextc = textDest.back();
+
 		if (voicePlayed == false
 			&& std::isprint(c)
 			&& c != ' ')
@@ -174,7 +185,8 @@ void Dialogue::WriteText(void)
 			voicePlayed = true;
 		}
 
-		if (c == '.' || c == ',' || c == ';' || c == '!' || c == '?')
+		if (std::ispunct(c)
+			&& std::isspace(nextc))
 		{
 			// slow down for punctuation
 			textTimer += kTextPunctPause;
@@ -183,8 +195,6 @@ void Dialogue::WriteText(void)
 		{
 			textTimer += FRACUNIT;
 		}
-
-		textDest.pop_back();
 	}
 
 	textDone = (textTimer <= 0 && textDest.empty());
diff --git a/src/p_inter.c b/src/p_inter.c
index 5cb73a6c8..ffb4cff53 100644
--- a/src/p_inter.c
+++ b/src/p_inter.c
@@ -692,6 +692,25 @@ void P_TouchSpecialThing(mobj_t *special, mobj_t *toucher, boolean heightcheck)
 				{
 					// Unassigned, get the next grabbable colour
 					can_id = gamedata->gotspraycans;
+
+					// Multiple cans in one map?
+					if (special->threshold != 0)
+					{
+						UINT16 ref_id = can_id + (special->threshold & UINT8_MAX);
+						if (ref_id >= gamedata->numspraycans)
+							return;
+
+						// Swap this specific can to the head of the list.
+						UINT16 swapcol = gamedata->spraycans[ref_id].col;
+
+						gamedata->spraycans[ref_id].col =
+							gamedata->spraycans[can_id].col;
+						skincolors[gamedata->spraycans[ref_id].col].cache_spraycan = ref_id;
+
+						gamedata->spraycans[can_id].col = swapcol;
+						skincolors[swapcol].cache_spraycan = can_id;
+					}
+
 				}
 
 				if (can_id >= gamedata->numspraycans)
@@ -712,8 +731,30 @@ void P_TouchSpecialThing(mobj_t *special, mobj_t *toucher, boolean heightcheck)
 					gamedata->deferredsave = true;
 				}
 
-				// Don't delete the object, just fade it.
-				P_SprayCanInit(special);
+				{
+					mobj_t *canmo = NULL;
+					mobj_t *next = NULL;
+
+					for (canmo = trackercap; canmo; canmo = next)
+					{
+						next = canmo->itnext;
+
+						if (canmo->type != MT_SPRAYCAN)
+							continue;
+
+						// Don't delete the object(s), just fade it.
+						if (netgame || canmo == special)
+						{
+							P_SprayCanInit(canmo);
+							continue;
+						}
+
+						// Get ready to get rid of these
+						canmo->renderflags |= (tr_trans50 << RF_TRANSSHIFT);
+						canmo->destscale = 0;
+					}
+				}
+
 				return;
 			}
 
diff --git a/src/p_mobj.c b/src/p_mobj.c
index 670650848..4f1b97657 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -12463,8 +12463,14 @@ void P_SprayCanInit(mobj_t* mobj)
 	// Prevent footguns - these won't persist when custom levels are unloaded
 	else if (gamemap-1 < basenummapheaders)
 	{
-		// Unassigned, get the next grabbable colour
+		// Unassigned, get the next grabbable colour (offset by threshold)
 		can_id = gamedata->gotspraycans;
+
+		// It's ok if this goes over gamedata->numspraycans, as they're
+		// capped below in this func... but NEVER let this go backwards!!
+		if (mobj->threshold != 0)
+			can_id += (mobj->threshold & UINT8_MAX);
+
 		mobj->renderflags = 0;
 	}
 
@@ -12940,17 +12946,15 @@ static boolean P_SetupSpawnedMapThing(mapthing_t *mthing, mobj_t *mobj)
 	}
 	case MT_SPRAYCAN:
 	{
-		if (nummapspraycans)
+		if (nummapspraycans == UINT8_MAX)
 		{
-			if (nummapspraycans != UINT8_MAX)
-				nummapspraycans++;
-
 			P_RemoveMobj(mobj);
 			return false;
 		}
 
 		P_SetScale(mobj, mobj->destscale = 2*mobj->scale);
 
+		mobj->threshold = nummapspraycans;
 		P_SprayCanInit(mobj);
 		nummapspraycans++;
 		break;
diff --git a/src/p_setup.c b/src/p_setup.c
index 8ab8a2588..da3f780b7 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -816,7 +816,8 @@ static void P_SpawnMapThings(boolean spawnemblems)
 
 	Z_Free(loopends);
 
-	if (spawnemblems)
+	if (spawnemblems
+		&& gametype != GT_TUTORIAL)
 	{
 		const UINT8 recommendedcans =
 #ifdef DEVELOP