diff --git a/src/deh_lua.c b/src/deh_lua.c
index 516f9e2be..c9b750c0b 100644
--- a/src/deh_lua.c
+++ b/src/deh_lua.c
@@ -479,6 +479,13 @@ static int ScanConstants(lua_State *L, boolean mathlib, const char *word)
 				CacheAndPushConstant(L, word, i);
 				return 1;
 			}
+
+		if (lua_compatmode)
+			for (i = 0; MOBJ_ALIASES[i].n; i++)
+				if (fastcmp(p, MOBJ_ALIASES[i].n)) {
+					CacheAndPushConstant(L, word, MOBJ_ALIASES[i].v);
+					return 1;
+				}
 		return luaL_error(L, "mobjtype '%s' does not exist.\n", word);
 	}
 	else if (fastncmp("SPR_",word,4)) {
diff --git a/src/deh_tables.c b/src/deh_tables.c
index d8b904ab1..0107d7431 100644
--- a/src/deh_tables.c
+++ b/src/deh_tables.c
@@ -128,6 +128,16 @@ const char *const MOBJTYPE_LIST[] = {  // array length left dynamic for sanity t
 #undef _
 };
 
+struct int_const_s const MOBJ_ALIASES[] = {
+	{"BIRD",    	MT_FLICKY_01},
+	{"BUNNY" ,   	MT_FLICKY_02},
+	{"MOUSE" , 	MT_FLICKY_12},
+	{"CHICKEN" , 	MT_FLICKY_03},
+	{"REDBIRD",	MT_FLICKY_10},
+	{"COW", MT_FLICKY_11},
+	{ NULL, 0 }
+};
+
 const char *const MOBJFLAG_LIST[] = {
 	"SPECIAL",
 	"SOLID",
@@ -944,13 +954,13 @@ struct int_const_s const INT_CONST[] = {
 	{"PRECIP_NONE",PRECIP_NONE},
 	{"PRECIP_RAIN",PRECIP_RAIN},
 	{"PRECIP_SNOW",PRECIP_SNOW},
-	{"PRECIP_BLIZZARD",PRECIP_BLIZZARD},
 	{"PRECIP_STORM",PRECIP_STORM},
 	{"PRECIP_STORM_NORAIN",PRECIP_STORM_NORAIN},
 	{"PRECIP_STORM_NOSTRIKES",PRECIP_STORM_NOSTRIKES},
 
 	// Carrying
 	{"CR_NONE",CR_NONE},
+	{"CR_SLIDING",CR_SLIDING},
 	{"CR_ZOOMTUBE",CR_ZOOMTUBE},
 
 	// Character flags (skinflags_t)
diff --git a/src/deh_tables.h b/src/deh_tables.h
index 65f05b0d3..4451f6b51 100644
--- a/src/deh_tables.h
+++ b/src/deh_tables.h
@@ -74,6 +74,7 @@ extern actionpointer_t actionpointers[]; // Array mapping action names to action
 extern const char *const STATE_LIST[];
 extern struct int_const_s const STATE_ALIASES[];
 extern const char *const MOBJTYPE_LIST[];
+extern struct int_const_s const MOBJ_ALIASES[];
 extern const char *const MOBJFLAG_LIST[];
 extern const char *const MOBJFLAG2_LIST[]; // \tMF2_(\S+).*// (.+) --> \t"\1", // \2
 extern const char *const MOBJEFLAG_LIST[];
diff --git a/src/doomstat.h b/src/doomstat.h
index 90ec96e2e..63a368d77 100644
--- a/src/doomstat.h
+++ b/src/doomstat.h
@@ -76,7 +76,6 @@ typedef enum
 
 	PRECIP_RAIN,
 	PRECIP_SNOW,
-	PRECIP_BLIZZARD,
 	PRECIP_STORM,
 	PRECIP_STORM_NORAIN,
 	PRECIP_STORM_NOSTRIKES,
diff --git a/src/g_game.c b/src/g_game.c
index 62876415b..f0dc9e830 100644
--- a/src/g_game.c
+++ b/src/g_game.c
@@ -107,7 +107,6 @@ precipprops_t precipprops[MAXPRECIP] =
 	{"NONE",				MT_NULL, 			0}, // PRECIP_NONE
 	{"RAIN",				MT_RAIN, 			0}, // PRECIP_RAIN
 	{"SNOW",				MT_SNOWFLAKE,		0}, // PRECIP_SNOW
-	{"BLIZZARD",			MT_BLIZZARDSNOW,	0}, // PRECIP_BLIZZARD
 	{"STORM",				MT_RAIN,			PRECIPFX_THUNDER|PRECIPFX_LIGHTNING}, // PRECIP_STORM
 	{"STORM_NORAIN",		MT_NULL,			PRECIPFX_THUNDER|PRECIPFX_LIGHTNING}, // PRECIP_STORM_NORAIN
 	{"STORM_NOSTRIKES",		MT_RAIN,			PRECIPFX_THUNDER} // PRECIP_STORM_NOSTRIKES
diff --git a/src/info/mobjs.h b/src/info/mobjs.h
index 9458fe8de..0eca5525f 100644
--- a/src/info/mobjs.h
+++ b/src/info/mobjs.h
@@ -426,7 +426,6 @@ _(SEED)
 // Environmental Effects
 _(RAIN) // Rain
 _(SNOWFLAKE) // Snowflake
-_(BLIZZARDSNOW) // Blizzard Snowball
 _(SPLISH) // Water splish!
 _(LAVASPLISH) // Lava splish!
 _(SMOKE)
@@ -569,14 +568,6 @@ _(ROCKCRUMBLE14)
 _(ROCKCRUMBLE15)
 _(ROCKCRUMBLE16)
 
-// Level debris
-_(GFZDEBRIS)
-_(BRICKDEBRIS)
-_(WOODDEBRIS)
-_(REDBRICKDEBRIS) // for CEZ3
-_(BLUEBRICKDEBRIS) // for CEZ3
-_(YELLOWBRICKDEBRIS) // for CEZ3
-
 // SRB1 Badniks
 _(SRB1_CRAWLA)
 _(SRB1_BAT)
diff --git a/src/info/sprites.h b/src/info/sprites.h
index 210902f9d..b8328f6ab 100644
--- a/src/info/sprites.h
+++ b/src/info/sprites.h
@@ -292,7 +292,6 @@ _(BSTR) // Red Booster
 // Environmental Effects
 _(RAIN) // Rain
 _(SNO1) // Snowflake
-_(SNO2) // Blizzard Snowball
 _(SPLH) // Water Splish
 _(LSPL) // Lava Splish
 _(SPLA) // Water Splash
diff --git a/src/info/states.h b/src/info/states.h
index 1524c4efa..cbeb41bb4 100644
--- a/src/info/states.h
+++ b/src/info/states.h
@@ -2026,11 +2026,6 @@ _(SNOW1)
 _(SNOW2)
 _(SNOW3)
 
-// Blizzard Snowball
-_(BLIZZARDSNOW1)
-_(BLIZZARDSNOW2)
-_(BLIZZARDSNOW3)
-
 // Water Splish
 _(SPLISH1)
 _(SPLISH2)
@@ -2527,14 +2522,6 @@ _(ROCKCRUMBLEN)
 _(ROCKCRUMBLEO)
 _(ROCKCRUMBLEP)
 
-// Level debris
-_(GFZDEBRIS)
-_(BRICKDEBRIS)
-_(WOODDEBRIS)
-_(REDBRICKDEBRIS) // for CEZ3
-_(BLUEBRICKDEBRIS) // for CEZ3
-_(YELLOWBRICKDEBRIS) // for CEZ3
-
 // SRB1 Badniks
 _(SRB1_CRAWLA1)
 _(SRB1_CRAWLA2)
diff --git a/src/p_floor.c b/src/p_floor.c
index 05cfe8191..cbd3bfded 100644
--- a/src/p_floor.c
+++ b/src/p_floor.c
@@ -1030,7 +1030,6 @@ static mobj_t *SearchMarioNode(msecnode_t *node)
 		case MT_SUPERSPARK:
 		case MT_RAIN:
 		case MT_SNOWFLAKE:
-		case MT_BLIZZARDSNOW:
 		case MT_SPLISH:
 		case MT_LAVASPLISH:
 		case MT_SMOKE:
diff --git a/src/p_local.h b/src/p_local.h
index 8df94fe9e..dd0980b32 100644
--- a/src/p_local.h
+++ b/src/p_local.h
@@ -577,7 +577,7 @@ struct BasicFF_t
 #define DMG_SPECTATOR  0x83
 #define DMG_TIMEOVER   0x84
 // Masks
-//free		 0x10 // Flag - setting this flag allows objects to damage you if you're already in spinout. The effect is reversed on objects with MF_MISSILE (setting it prevents them from comboing in spinout)
+//free		 0x10
 #define DMG_STEAL        0x20 // Flag - can steal bumpers, will only deal damage to players, and will not deal damage outside Battle Mode.
 #define DMG_CANTHURTSELF 0x40 // Flag - cannot hurt your self or your team
 #define DMG_DEATHMASK    DMG_INSTAKILL // if bit 7 is set, this is a death type instead of a damage type
diff --git a/src/p_mobj.c b/src/p_mobj.c
index b4cd4438d..4e8933e12 100644
--- a/src/p_mobj.c
+++ b/src/p_mobj.c
@@ -5655,8 +5655,6 @@ static void P_MobjSceneryThink(mobj_t *mobj)
 	case MT_ROCKCRUMBLE14:
 	case MT_ROCKCRUMBLE15:
 	case MT_ROCKCRUMBLE16:
-	case MT_WOODDEBRIS:
-	case MT_BRICKDEBRIS:
 		if (mobj->z <= P_FloorzAtPos(mobj->x, mobj->y, mobj->z, mobj->height)
         && mobj->state != &states[mobj->info->deathstate])
 		{
diff --git a/src/p_mobj.h b/src/p_mobj.h
index 32edf7dde..ae887a9f0 100644
--- a/src/p_mobj.h
+++ b/src/p_mobj.h
@@ -173,7 +173,7 @@ typedef enum
 typedef enum
 {
 	MF2_AXIS           = 1,     // It's a NiGHTS axis! (For faster checking)
-	MF2_SHADOW         = 1<<3,  // DO NOT USE: for lua compatibility only
+	MF2_SHADOW         = 1<<1,  // DO NOT USE: for lua compatibility only
 	MF2_DONTRESPAWN    = 1<<2,  // Don't respawn this object!
 	MF2_DONTDRAW       = 1<<3,  // DO NOT USE: for lua compatibility only
 	MF2_AUTOMATIC      = 1<<4,  // Thrown ring has automatic properties