diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index c61e181a5..ef2304410 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -159,6 +159,9 @@ stages:
 
 Debian testing GCC:
   stage: build
+
+  when: manual
+
   image: debian:testing-slim
 
   allow_failure: true
@@ -198,6 +201,8 @@ Debian testing GCC:
 Windows x86:
   stage: build
 
+  when: on_success
+
   artifacts:
     paths:
       - "bin/"
@@ -228,6 +233,8 @@ Windows x86:
 Debian stable:amd64:
   stage: build
 
+  when: on_success
+
   artifacts:
     paths:
       - "bin/"
@@ -270,6 +277,8 @@ Debian stable:amd64:
 Debian stable:i386:
   stage: build
 
+  when: manual
+
   artifacts:
     paths:
       - "bin/"
@@ -311,6 +320,8 @@ Debian stable:i386:
 Debian stable:arm64:
   stage: build
 
+  when: manual
+
   artifacts:
     paths:
       - "bin/"
@@ -353,6 +364,8 @@ Debian stable:arm64:
 Windows x64:
   stage: build
 
+  when: manual
+
   artifacts:
     paths:
       - "bin/"
@@ -383,6 +396,8 @@ Windows x64:
 Debian stable Clang:
   stage: build
 
+  when: manual
+
   allow_failure: true
 
   artifacts:
@@ -422,6 +437,8 @@ Debian stable Clang:
 Debian stable musl:
   stage: build
 
+  when: manual
+
   allow_failure: true
 
   artifacts:
@@ -459,6 +476,8 @@ Debian stable musl:
 Debian testing Clang:
   extends: Debian stable Clang
 
+  when: manual
+
   image: debian:testing-slim
 
   artifacts:
@@ -473,6 +492,8 @@ Debian testing Clang:
 Debian testing musl:
   extends: Debian stable musl
 
+  when: manual
+
   image: debian:testing-slim
 
   artifacts:
diff --git a/src/lua_baselib.c b/src/lua_baselib.c
index 45bb162c4..ecd3e2fa8 100644
--- a/src/lua_baselib.c
+++ b/src/lua_baselib.c
@@ -1031,6 +1031,20 @@ static int lib_pRailThinker(lua_State *L)
 	return 1;
 }
 
+static int lib_pCheckSkyHit(lua_State *L)
+{
+	mobj_t *mobj = *((mobj_t **)luaL_checkudata(L, 1, META_MOBJ));
+	line_t *line = *((line_t **)luaL_checkudata(L, 2, META_LINE));
+	//HUDSAFE
+	INLEVEL
+	if (!mobj)
+		return LUA_ErrInvalid(L, "mobj_t");
+	if (!line)
+		return LUA_ErrInvalid(L, "line_t");
+	lua_pushboolean(L, P_CheckSkyHit(mobj, line));
+	return 1;
+}
+
 static int lib_pXYMovement(lua_State *L)
 {
 	mobj_t *actor = *((mobj_t **)luaL_checkudata(L, 1, META_MOBJ));
@@ -1425,6 +1439,18 @@ static int lib_pGivePlayerRings(lua_State *L)
 	return 0;
 }
 
+static int lib_pGivePlayerSpheres(lua_State *L)
+{
+	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
+	INT32 num_spheres = (INT32)luaL_checkinteger(L, 2);
+	NOHUD
+	INLEVEL
+	if (!player)
+		return LUA_ErrInvalid(L, "player_t");
+	P_GivePlayerSpheres(player, num_spheres);
+	return 0;
+}
+
 static int lib_pGivePlayerLives(lua_State *L)
 {
 	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
@@ -1680,6 +1706,17 @@ static int lib_pDoJump(lua_State *L)
 	return 0;
 }
 
+static int lib_pDoSpinDashDust(lua_State *L)
+{
+	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
+	NOHUD
+	INLEVEL
+	if (!player)
+		return LUA_ErrInvalid(L, "player_t");
+	P_DoSpinDashDust(player);
+	return 0;
+}
+
 static int lib_pSpawnThokMobj(lua_State *L)
 {
 	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
@@ -1730,6 +1767,48 @@ static int lib_pSwitchShield(lua_State *L)
 	return 0;
 }
 
+static int lib_pDoTailsOverlay(lua_State *L)
+{
+	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
+	mobj_t *tails = *((mobj_t **)luaL_checkudata(L, 2, META_MOBJ));
+	NOHUD
+	INLEVEL
+	if (!player)
+		return LUA_ErrInvalid(L, "player_t");
+	if (!tails)
+		return LUA_ErrInvalid(L, "mobj_t");
+	P_DoTailsOverlay(player, tails);
+	return 0;
+}
+
+static int lib_pDoMetalJetFume(lua_State *L)
+{
+	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
+	mobj_t *fume = *((mobj_t **)luaL_checkudata(L, 2, META_MOBJ));
+	NOHUD
+	INLEVEL
+	if (!player)
+		return LUA_ErrInvalid(L, "player_t");
+	if (!fume)
+		return LUA_ErrInvalid(L, "mobj_t");
+	P_DoMetalJetFume(player, fume);
+	return 0;
+}
+
+static int lib_pDoFollowMobj(lua_State *L)
+{
+	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
+	mobj_t *followmobj = *((mobj_t **)luaL_checkudata(L, 2, META_MOBJ));
+	NOHUD
+	INLEVEL
+	if (!player)
+		return LUA_ErrInvalid(L, "player_t");
+	if (!followmobj)
+		return LUA_ErrInvalid(L, "mobj_t");
+	P_DoFollowMobj(player, followmobj);
+	return 0;
+}
+
 static int lib_pPlayerCanEnterSpinGaps(lua_State *L)
 {
 	player_t *player = *((player_t **)luaL_checkudata(L, 1, META_PLAYER));
@@ -2211,6 +2290,21 @@ static int lib_pDoMatchSuper(lua_State *L)
 	return 0;
 }
 
+static int lib_pTouchSpecialThing(lua_State *L)
+{
+	mobj_t *special = *((mobj_t **)luaL_checkudata(L, 1, META_MOBJ));
+	mobj_t *toucher = *((mobj_t **)luaL_checkudata(L, 2, META_MOBJ));
+	boolean heightcheck = lua_optboolean(L, 3);
+	NOHUD
+	INLEVEL
+	if (!special || !toucher)
+		return LUA_ErrInvalid(L, "mobj_t");
+	if (!toucher->player)
+		return luaL_error(L, "P_TouchSpecialThing requires a valid toucher.player.");
+	P_TouchSpecialThing(special, toucher, heightcheck);
+	return 0;
+}
+
 // P_SPEC
 ////////////
 
@@ -4126,6 +4220,7 @@ static luaL_Reg lib[] = {
 	{"P_CreateFloorSpriteSlope",lib_pCreateFloorSpriteSlope},
 	{"P_RemoveFloorSpriteSlope",lib_pRemoveFloorSpriteSlope},
 	{"P_RailThinker",lib_pRailThinker},
+	{"P_CheckSkyHit",lib_pCheckSkyHit},
 	{"P_XYMovement",lib_pXYMovement},
 	{"P_RingXYMovement",lib_pRingXYMovement},
 	{"P_SceneryXYMovement",lib_pSceneryXYMovement},
@@ -4158,6 +4253,7 @@ static luaL_Reg lib[] = {
 	{"P_SpawnShieldOrb",lib_pSpawnShieldOrb},
 	{"P_SpawnGhostMobj",lib_pSpawnGhostMobj},
 	{"P_GivePlayerRings",lib_pGivePlayerRings},
+	{"P_GivePlayerSpheres",lib_pGivePlayerSpheres},
 	{"P_GivePlayerLives",lib_pGivePlayerLives},
 	{"P_GiveCoopLives",lib_pGiveCoopLives},
 	{"P_ResetScore",lib_pResetScore},
@@ -4179,10 +4275,14 @@ static luaL_Reg lib[] = {
 	{"P_HomingAttack",lib_pHomingAttack},
 	{"P_SuperReady",lib_pSuperReady},
 	{"P_DoJump",lib_pDoJump},
+	{"P_DoSpinDashDust",lib_pDoSpinDashDust},
 	{"P_SpawnThokMobj",lib_pSpawnThokMobj},
 	{"P_SpawnSpinMobj",lib_pSpawnSpinMobj},
 	{"P_Telekinesis",lib_pTelekinesis},
 	{"P_SwitchShield",lib_pSwitchShield},
+	{"P_DoTailsOverlay",lib_pDoTailsOverlay},
+	{"P_DoMetalJetFume",lib_pDoMetalJetFume},
+	{"P_DoFollowMobj",lib_pDoFollowMobj},
 	{"P_PlayerCanEnterSpinGaps",lib_pPlayerCanEnterSpinGaps},
 	{"P_PlayerShouldUseSpinHeight",lib_pPlayerShouldUseSpinHeight},
 
@@ -4201,6 +4301,7 @@ static luaL_Reg lib[] = {
 	{"P_FloorzAtPos",lib_pFloorzAtPos},
 	{"P_CeilingzAtPos",lib_pCeilingzAtPos},
 	{"P_DoSpring",lib_pDoSpring},
+	{"P_TouchSpecialThing",lib_pTouchSpecialThing},
 	{"P_TryCameraMove", lib_pTryCameraMove},
 	{"P_TeleportCameraMove", lib_pTeleportCameraMove},
 
diff --git a/src/lua_consolelib.c b/src/lua_consolelib.c
index 0ab8ad9c3..9b3fd2ea0 100644
--- a/src/lua_consolelib.c
+++ b/src/lua_consolelib.c
@@ -374,6 +374,9 @@ static int lib_cvRegisterVar(lua_State *L)
 				size_t count = 0;
 				CV_PossibleValue_t *cvpv;
 
+				const char * const MINMAX[2] = {"MIN", "MAX"};
+				int minmax_unset = 3;
+
 				lua_pushnil(L);
 				while (lua_next(L, 4))
 				{
@@ -392,16 +395,45 @@ static int lib_cvRegisterVar(lua_State *L)
 				lua_pushnil(L);
 				while (lua_next(L, 4))
 				{
+					INT32 n;
+					const char * strval;
+
 					// stack: [...] PossibleValue table, index, value
 					//                       4             5      6
 					if (lua_type(L, 5) != LUA_TSTRING
 					|| lua_type(L, 6) != LUA_TNUMBER)
 						FIELDERROR("PossibleValue", "custom PossibleValue table requires a format of string=integer, i.e. {MIN=0, MAX=9999}");
-					cvpv[i].strvalue = Z_StrDup(lua_tostring(L, 5));
-					cvpv[i].value = (INT32)lua_tonumber(L, 6);
-					i++;
+
+					strval = lua_tostring(L, 5);
+
+					if (
+							stricmp(strval, MINMAX[n=0]) == 0 ||
+							stricmp(strval, MINMAX[n=1]) == 0
+					){
+						/* need to shift forward */
+						if (minmax_unset == 3)
+						{
+							memmove(&cvpv[2], &cvpv[0],
+									i * sizeof *cvpv);
+							i += 2;
+						}
+						cvpv[n].strvalue = MINMAX[n];
+						minmax_unset &= ~(1 << n);
+					}
+					else
+					{
+						n = i++;
+						cvpv[n].strvalue = Z_StrDup(strval);
+					}
+
+					cvpv[n].value = (INT32)lua_tonumber(L, 6);
+
 					lua_pop(L, 1);
 				}
+
+				if (minmax_unset && minmax_unset != 3)
+					FIELDERROR("PossibleValue", "custom PossibleValue table requires requires both MIN and MAX keys if one is present");
+
 				cvpv[i].value = 0;
 				cvpv[i].strvalue = NULL;
 				cvar->PossibleValue = cvpv;
diff --git a/src/p_local.h b/src/p_local.h
index 007954312..c26c09860 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -204,6 +204,7 @@ void P_Earthquake(mobj_t *inflictor, mobj_t *source, fixed_t radius);
 boolean P_HomingAttack(mobj_t *source, mobj_t *enemy); /// \todo doesn't belong in p_user
 boolean P_SuperReady(player_t *player);
 void P_DoJump(player_t *player, boolean soundandstate);
+void P_DoSpinDashDust(player_t *player);
 #define P_AnalogMove(player) (P_ControlStyle(player) == CS_LMAOGALOG)
 boolean P_TransferToNextMare(player_t *player);
 UINT8 P_FindLowestMare(void);
@@ -214,6 +215,10 @@ void P_SpawnThokMobj(player_t *player);
 void P_SpawnSpinMobj(player_t *player, mobjtype_t type);
 void P_Telekinesis(player_t *player, fixed_t thrust, fixed_t range);
 
+void P_DoTailsOverlay(player_t *player, mobj_t *tails);
+void P_DoMetalJetFume(player_t *player, mobj_t *fume);
+void P_DoFollowMobj(player_t *player, mobj_t *followmobj);
+
 void P_PlayLivesJingle(player_t *player);
 #define P_PlayRinglossSound(s)	S_StartSound(s, (mariomode) ? sfx_mario8 : sfx_altow1 + P_RandomKey(4));
 #define P_PlayDeathSound(s)		S_StartSound(s, sfx_altdi1 + P_RandomKey(4));
@@ -298,6 +303,7 @@ void P_RunOverlays(void);
 void P_HandleMinecartSegments(mobj_t *mobj);
 void P_MobjThinker(mobj_t *mobj);
 boolean P_RailThinker(mobj_t *mobj);
+boolean P_CheckSkyHit(mobj_t *mo, line_t *line);
 void P_PushableThinker(mobj_t *mobj);
 void P_SceneryThinker(mobj_t *mobj);
 
diff --git a/src/p_mobj.c b/src/p_mobj.c
index 8bc74e3b8..4b17b7c11 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -1779,14 +1779,15 @@ bustupdone:
 //
 // P_CheckSkyHit
 //
-static boolean P_CheckSkyHit(mobj_t *mo)
+boolean P_CheckSkyHit(mobj_t *mo, line_t *line)
 {
-	if (ceilingline && ceilingline->backsector
-		&& ceilingline->backsector->ceilingpic == skyflatnum
-		&& ceilingline->frontsector
-		&& ceilingline->frontsector->ceilingpic == skyflatnum
-		&& (mo->z >= ceilingline->frontsector->ceilingheight
-		|| mo->z >= ceilingline->backsector->ceilingheight))
+	if (line && (line->special == 41 ||
+		(line->backsector
+		&& line->backsector->ceilingpic == skyflatnum
+		&& line->frontsector
+		&& line->frontsector->ceilingpic == skyflatnum
+		&& (mo->z >= line->frontsector->ceilingheight
+		|| mo->z >= line->backsector->ceilingheight))))
 			return true;
 	return false;
 }
@@ -1893,7 +1894,7 @@ void P_XYMovement(mobj_t *mo)
 					mo->fuse += ((5 - mo->threshold) * TICRATE);
 
 				// Check for hit against sky here
-				if (P_CheckSkyHit(mo))
+				if (P_CheckSkyHit(mo, ceilingline))
 				{
 					// Hack to prevent missiles exploding
 					// against the sky.
@@ -1913,7 +1914,7 @@ void P_XYMovement(mobj_t *mo)
 			mo->flags &= ~MF_STICKY; //Don't check again!
 
 			// Check for hit against sky here
-			if (P_CheckSkyHit(mo))
+			if (P_CheckSkyHit(mo, ceilingline))
 			{
 				// Hack to prevent missiles exploding
 				// against the sky.
@@ -1972,7 +1973,7 @@ void P_XYMovement(mobj_t *mo)
 		else if (mo->flags & MF_MISSILE)
 		{
 			// explode a missile
-			if (P_CheckSkyHit(mo))
+			if (P_CheckSkyHit(mo, ceilingline))
 			{
 				// Hack to prevent missiles exploding
 				// against the sky.
diff --git a/src/p_user.c b/src/p_user.c
index 7aed5269f..3da9461c3 100644
--- a/src/p_user.c
+++ b/src/p_user.c
@@ -4601,7 +4601,7 @@ void P_DoJump(player_t *player, boolean soundandstate)
 	}
 }
 
-static void P_DoSpinDashDust(player_t *player)
+void P_DoSpinDashDust(player_t *player)
 {
 	UINT32 i;
 	mobj_t *particle;
@@ -11191,7 +11191,7 @@ static void P_MinecartThink(player_t *player)
 }
 
 // Handle Tails' fluff
-static void P_DoTailsOverlay(player_t *player, mobj_t *tails)
+void P_DoTailsOverlay(player_t *player, mobj_t *tails)
 {
 	// init...
 	boolean smilesonground = P_IsObjectOnGround(player->mo);
@@ -11396,7 +11396,7 @@ static void P_DoTailsOverlay(player_t *player, mobj_t *tails)
 }
 
 // Metal Sonic's jet fume
-static void P_DoMetalJetFume(player_t *player, mobj_t *fume)
+void P_DoMetalJetFume(player_t *player, mobj_t *fume)
 {
 	static const UINT8 FUME_SKINCOLORS[] =
 	{
@@ -11534,6 +11534,30 @@ static void P_DoMetalJetFume(player_t *player, mobj_t *fume)
 	}
 }
 
+// Handle Followmobj behavior
+void P_DoFollowMobj(player_t *player, mobj_t *followmobj)
+{
+	if (LUA_HookFollowMobj(player, followmobj) || P_MobjWasRemoved(followmobj))
+		{;}
+	else
+	{
+		switch (followmobj->type)
+		{
+			case MT_TAILSOVERLAY: // c:
+				P_DoTailsOverlay(player, followmobj);
+				break;
+			case MT_METALJETFUME:
+				P_DoMetalJetFume(player, followmobj);
+				break;
+			default:
+				var1 = 1;
+				var2 = 0;
+				A_CapeChase(followmobj);
+				break;
+		}
+	}
+}
+
 //
 // P_PlayerThink
 //
@@ -13010,27 +13034,7 @@ void P_PlayerAfterThink(player_t *player)
 		}
 
 		if (player->followmobj)
-		{
-			if (LUA_HookFollowMobj(player, player->followmobj) || P_MobjWasRemoved(player->followmobj))
-				{;}
-			else
-			{
-				switch (player->followmobj->type)
-				{
-					case MT_TAILSOVERLAY: // c:
-						P_DoTailsOverlay(player, player->followmobj);
-						break;
-					case MT_METALJETFUME:
-						P_DoMetalJetFume(player, player->followmobj);
-						break;
-					default:
-						var1 = 1;
-						var2 = 0;
-						A_CapeChase(player->followmobj);
-						break;
-				}
-			}
-		}
+			P_DoFollowMobj(player, player->followmobj);
 	}
 
 	P_DoPlayerHeadSigns(player); // Spawn Tag/CTF signs over player's head