diff --git a/src/graphics/Renderer.cpp b/src/graphics/Renderer.cpp
index b23b68304..0acf40b9a 100644
--- a/src/graphics/Renderer.cpp
+++ b/src/graphics/Renderer.cpp
@@ -1473,10 +1473,6 @@ void Renderer::DrawBlob(Vec2<int> pos, RGB colour)
 	BlendPixel(pos + Vec2{ -1, +1 }, colour.WithAlpha(64));
 }
 
-float temp[CELL*3][CELL*3];
-float fire_alphaf[CELL*3][CELL*3];
-float glow_alphaf[11][11];
-float blur_alphaf[7][7];
 void Renderer::prepare_alpha(int size, float intensity)
 {
 	fireIntensity = intensity;
@@ -1484,6 +1480,7 @@ void Renderer::prepare_alpha(int size, float intensity)
 	int x,y,i,j;
 	float multiplier = 255.0f*fireIntensity;
 
+	float temp[CELL*3][CELL*3];
 	memset(temp, 0, sizeof(temp));
 	for (x=0; x<CELL; x++)
 		for (y=0; y<CELL; y++)
diff --git a/src/simulation/Simulation.cpp b/src/simulation/Simulation.cpp
index bac3338b2..63c74cb2a 100644
--- a/src/simulation/Simulation.cpp
+++ b/src/simulation/Simulation.cpp
@@ -1023,6 +1023,10 @@ void Simulation::clear_sim(void)
 	memset(fighters, 0, sizeof(fighters));
 	memset(&player, 0, sizeof(player));
 	memset(&player2, 0, sizeof(player2));
+	memset(&Element_LOLZ_lolz, 0, sizeof(Element_LOLZ_lolz));
+	memset(&Element_LOVE_love, 0, sizeof(Element_LOVE_love));
+	memset(&Element_PSTN_tempParts, 0, sizeof(Element_PSTN_tempParts));
+	Element_PPIP_ppip_changed = 0;
 	std::fill(elementCount, elementCount+PT_NUM, 0);
 	elementRecount = true;
 	fighcount = 0;
diff --git a/src/simulation/Simulation.h b/src/simulation/Simulation.h
index cbf0536e6..ba488f1a9 100644
--- a/src/simulation/Simulation.h
+++ b/src/simulation/Simulation.h
@@ -128,6 +128,10 @@ public:
 
 	float fvx[YCELLS][XCELLS];
 	float fvy[YCELLS][XCELLS];
+	int Element_LOLZ_lolz[XRES/9][YRES/9];
+	int Element_LOVE_love[XRES/9][YRES/9];
+	int Element_PSTN_tempParts[std::max(XRES, YRES)];
+	int Element_PPIP_ppip_changed;
 
 	unsigned int pmap_count[YRES][XRES];
 
diff --git a/src/simulation/elements/ETRD.cpp b/src/simulation/elements/ETRD.cpp
index 5fce6c76d..1a21d10e8 100644
--- a/src/simulation/elements/ETRD.cpp
+++ b/src/simulation/elements/ETRD.cpp
@@ -2,7 +2,6 @@
 #include "ETRD.h"
 #include <algorithm>
 
-static void initDeltaPos();
 static void changeType(ELEMENT_CHANGETYPE_FUNC_ARGS);
 
 void Element::Element_ETRD()
@@ -46,8 +45,6 @@ void Element::Element_ETRD()
 	HighTemperatureTransition = NT;
 
 	ChangeType = &changeType;
-
-	initDeltaPos();
 }
 
 static void changeType(ELEMENT_CHANGETYPE_FUNC_ARGS)
@@ -75,12 +72,10 @@ public:
 	int length;
 };
 
-const int maxLength = 12;
-std::vector<ETRD_deltaWithLength> deltaPos;
-
-static void initDeltaPos()
+static const std::vector<ETRD_deltaWithLength> InitDeltaPos()
 {
-	deltaPos.clear();
+	const int maxLength = 12;
+	std::vector<ETRD_deltaWithLength> deltaPos;
 	for (int ry = -maxLength; ry <= maxLength; ry++)
 		for (int rx = -maxLength; rx <= maxLength; rx++)
 		{
@@ -91,7 +86,9 @@ static void initDeltaPos()
 	std::stable_sort(deltaPos.begin(), deltaPos.end(), [](const ETRD_deltaWithLength &a, const ETRD_deltaWithLength &b) {
 		return a.length < b.length;
 	});
+	return deltaPos;
 }
+static const auto deltaPos = InitDeltaPos();
 
 int Element_ETRD_nearestSparkablePart(Simulation *sim, int targetId)
 {
@@ -118,9 +115,8 @@ int Element_ETRD_nearestSparkablePart(Simulation *sim, int targetId)
 		// TODO: probably not optimal if excessive stacking is used
 		if (sim->parts.lastActiveIndex > (int)deltaPos.size()*2)
 		{
-			for (std::vector<ETRD_deltaWithLength>::iterator iter = deltaPos.begin(), end = deltaPos.end(); iter != end; ++iter)
+			for (auto &delta : deltaPos)
 			{
-				ETRD_deltaWithLength delta = (*iter);
 				ui::Point checkPos = targetPos + delta.d;
 				int checkDistance = delta.length;
 				if (parts[targetId].tmp >= checkDistance) // tmp sets min distance
diff --git a/src/simulation/elements/LOLZ.cpp b/src/simulation/elements/LOLZ.cpp
index 8f22276c4..0951b28b0 100644
--- a/src/simulation/elements/LOLZ.cpp
+++ b/src/simulation/elements/LOLZ.cpp
@@ -43,7 +43,7 @@ void Element::Element_LOLZ()
 	HighTemperatureTransition = NT;
 }
 
-int Element_LOLZ_RuleTable[9][9] =
+extern const int Element_LOLZ_RuleTable[9][9] =
 {
 	{0,0,0,0,0,0,0,0,0},
 	{1,0,0,0,0,0,1,0,0},
@@ -55,5 +55,3 @@ int Element_LOLZ_RuleTable[9][9] =
 	{0,1,0,0,0,0,0,1,0},
 	{0,1,0,0,0,0,0,1,0},
 };
-
-int Element_LOLZ_lolz[XRES/9][YRES/9];
diff --git a/src/simulation/elements/LOLZ.h b/src/simulation/elements/LOLZ.h
index 1eaecdab7..c4d87d161 100644
--- a/src/simulation/elements/LOLZ.h
+++ b/src/simulation/elements/LOLZ.h
@@ -1,7 +1,5 @@
 #pragma once
 #include "simulation/ElementDefs.h"
 
-extern int Element_LOLZ_RuleTable[9][9];
-extern int Element_LOLZ_lolz[XRES/9][YRES/9];
-extern int Element_LOVE_RuleTable[9][9];
-extern int Element_LOVE_love[XRES/9][YRES/9];
+extern const int Element_LOLZ_RuleTable[9][9];
+extern const int Element_LOVE_RuleTable[9][9];
diff --git a/src/simulation/elements/LOVE.cpp b/src/simulation/elements/LOVE.cpp
index 8674bf1c5..4d0b19b72 100644
--- a/src/simulation/elements/LOVE.cpp
+++ b/src/simulation/elements/LOVE.cpp
@@ -42,7 +42,7 @@ void Element::Element_LOVE()
 	HighTemperatureTransition = NT;
 }
 
-int Element_LOVE_RuleTable[9][9] =
+extern const int Element_LOVE_RuleTable[9][9] =
 {
 	{0,0,1,1,0,0,0,0,0},
 	{0,1,0,0,1,1,0,0,0},
@@ -54,5 +54,3 @@ int Element_LOVE_RuleTable[9][9] =
 	{0,1,0,0,1,1,0,0,0},
 	{0,0,1,1,0,0,0,0,0},
 };
-
-int Element_LOVE_love[XRES/9][YRES/9];
diff --git a/src/simulation/elements/PIPE.h b/src/simulation/elements/PIPE.h
index ad3d5d253..c5d0bdb5e 100644
--- a/src/simulation/elements/PIPE.h
+++ b/src/simulation/elements/PIPE.h
@@ -24,5 +24,4 @@ constexpr int PFLAG_COLOR_GREEN            = 0x00080000;
 constexpr int PFLAG_COLOR_BLUE             = 0x000C0000;
 constexpr int PFLAG_COLORS                 = 0x000C0000;
 
-extern int Element_PPIP_ppip_changed;
 extern const std::array<Vec2<int>, 8> Element_PIPE_offsets;
diff --git a/src/simulation/elements/PPIP.cpp b/src/simulation/elements/PPIP.cpp
index f42441ecb..5f16840b9 100644
--- a/src/simulation/elements/PPIP.cpp
+++ b/src/simulation/elements/PPIP.cpp
@@ -61,8 +61,6 @@ constexpr int PPIP_TMPFLAG_TRIGGER_REVERSE = 0x04000000;
 // 0x00002000 will transfer like a single pixel pipe when in reverse mode
 // 0x0001C000 reverse single pixel pipe direction
 
-int Element_PPIP_ppip_changed = 0;
-
 void Element_PPIP_flood_trigger(Simulation * sim, int x, int y, int sparkedBy)
 {
 	int coord_stack_limit = XRES*YRES;
@@ -120,7 +118,7 @@ void Element_PPIP_flood_trigger(Simulation * sim, int x, int y, int sparkedBy)
 		for (x=x1; x<=x2; x++)
 		{
 			if (!(parts[ID(pmap[y][x])].tmp & prop) && sparkedBy != PT_HEAC)
-				Element_PPIP_ppip_changed = 1;
+				sim->Element_PPIP_ppip_changed = 1;
 			parts[ID(pmap[y][x])].tmp |= prop;
 		}
 
diff --git a/src/simulation/elements/PSTN.cpp b/src/simulation/elements/PSTN.cpp
index c25773e08..c581118e3 100644
--- a/src/simulation/elements/PSTN.cpp
+++ b/src/simulation/elements/PSTN.cpp
@@ -67,8 +67,6 @@ struct StackData
 	}
 };
 
-int tempParts[XRES];
-
 constexpr int PISTON_INACTIVE   = 0x00;
 constexpr int PISTON_RETRACT    = 0x01;
 constexpr int PISTON_EXTEND     = 0x02;
@@ -221,14 +219,14 @@ static StackData CanMoveStack(Simulation * sim, int stackX, int stackY, int dire
 		if (!r)
 		{
 			spaces++;
-			tempParts[currentPos++] = -1;
+			sim->Element_PSTN_tempParts[currentPos++] = -1;
 			if (spaces >= amount)
 				break;
 		}
 		else
 		{
 			if (currentPos - spaces < maxSize && (!retract || (TYP(r) == PT_FRME && posX == stackX && posY == stackY)))
-				tempParts[currentPos++] = ID(r);
+				sim->Element_PSTN_tempParts[currentPos++] = ID(r);
 			else
 				return StackData(currentPos - spaces, spaces);
 		}
@@ -306,13 +304,13 @@ static int MoveStack(Simulation * sim, int stackX, int stackY, int directionX, i
 				break;
 			} else {
 				foundParts = true;
-				tempParts[currentPos++] = ID(r);
+				sim->Element_PSTN_tempParts[currentPos++] = ID(r);
 			}
 		}
 		if(foundParts) {
 			//Move particles
 			for(int j = 0; j < currentPos; j++) {
-				int jP = tempParts[j];
+				int jP = sim->Element_PSTN_tempParts[j];
 				int srcX = (int)(sim->parts[jP].x + 0.5f), srcY = (int)(sim->parts[jP].y + 0.5f);
 				int destX = srcX-directionX*amount, destY = srcY-directionY*amount;
 				sim->pmap[srcY][srcX] = 0;
@@ -329,7 +327,7 @@ static int MoveStack(Simulation * sim, int stackX, int stackY, int directionX, i
 			//Move particles
 			int possibleMovement = 0;
 			for(int j = currentPos-1; j >= 0; j--) {
-				int jP = tempParts[j];
+				int jP = sim->Element_PSTN_tempParts[j];
 				if(jP < 0) {
 					possibleMovement++;
 					continue;
diff --git a/src/simulation/elements/TRON.cpp b/src/simulation/elements/TRON.cpp
index b818d25fa..e8a68830b 100644
--- a/src/simulation/elements/TRON.cpp
+++ b/src/simulation/elements/TRON.cpp
@@ -3,7 +3,6 @@
 static int update(UPDATE_FUNC_ARGS);
 static int graphics(GRAPHICS_FUNC_ARGS);
 static void create(ELEMENT_CREATE_FUNC_ARGS);
-static void init_graphics();
 static int trymovetron(Simulation * sim, int x, int y, int dir, int i, int len);
 static bool canmovetron(Simulation * sim, int r, int len);
 static int new_tronhead(Simulation * sim, int x, int y, int i, int direction);
@@ -52,8 +51,6 @@ void Element::Element_TRON()
 	Update = &update;
 	Graphics = &graphics;
 	Create = &create;
-
-	init_graphics();
 }
 
 /* TRON element is meant to resemble a tron bike (or worm) moving around and trying to avoid obstacles itself.
@@ -80,20 +77,24 @@ constexpr auto TRON_WAIT     = UINT32_C(0x00000004); //it was just created, so W
 constexpr auto TRON_NODIE    = UINT32_C(0x00000008);
 constexpr auto TRON_DEATH    = UINT32_C(0x00000010); //Crashed, now dying
 constexpr auto TRON_NORANDOM = UINT32_C(0x00010000);
-int tron_rx[4] = {-1, 0, 1, 0};
-int tron_ry[4] = { 0,-1, 0, 1};
-unsigned int tron_colours[32];
+constexpr int tron_rx[4] = {-1, 0, 1, 0};
+constexpr int tron_ry[4] = { 0,-1, 0, 1};
 
-static void init_graphics()
+static const std::array<unsigned int, 32> MakeTronColors()
 {
+	std::array<unsigned int, 32> tron_colours;
 	int i;
 	int r, g, b;
 	for (i=0; i<32; i++)
 	{
+		// funny almost-bug: if (i<<4) > 360(ish), HSV_to_RGB does nothing with r/g/b,
+		// but since the variables are reused across iterations of the loop, they will still have sane values
 		HSV_to_RGB(i<<4,255,255,&r,&g,&b);
 		tron_colours[i] = r<<16 | g<<8 | b;
 	}
+	return tron_colours;
 }
+static const auto tron_colours = MakeTronColors();
 
 static int update(UPDATE_FUNC_ARGS)
 {