diff --git a/code/_globalvars/game_modes.dm b/code/_globalvars/game_modes.dm
index e88e6a6047c..9a8d0176764 100644
--- a/code/_globalvars/game_modes.dm
+++ b/code/_globalvars/game_modes.dm
@@ -2,7 +2,6 @@
 GLOBAL_VAR_INIT(master_mode, "extended") //"extended"
 GLOBAL_VAR_INIT(secret_force_mode, "secret") // if this is anything but "secret", the secret rotation will forceably choose this mode
 
-GLOBAL_VAR_INIT(wavesecret, 0) // meteor mode, delays wave progression, terrible name
 GLOBAL_DATUM(start_state, /datum/station_state) // Used in round-end report. Dont ask why it inits as null
 
 GLOBAL_VAR(custom_event_msg)
diff --git a/code/_globalvars/genetics.dm b/code/_globalvars/genetics.dm
index 2c49057e636..8e808415002 100644
--- a/code/_globalvars/genetics.dm
+++ b/code/_globalvars/genetics.dm
@@ -14,10 +14,6 @@ GLOBAL_VAR_INIT(twitchblock, 0)
 GLOBAL_VAR_INIT(nervousblock, 0)
 GLOBAL_VAR_INIT(wingdingsblock, 0)
 GLOBAL_VAR_INIT(monkeyblock, DNA_SE_LENGTH) // Monkey block will always be the DNA_SE_LENGTH
-
-GLOBAL_VAR_INIT(blockadd, 0)
-GLOBAL_VAR_INIT(diffmut, 0)
-
 GLOBAL_VAR_INIT(breathlessblock, 0)
 GLOBAL_VAR_INIT(remoteviewblock, 0)
 GLOBAL_VAR_INIT(regenerateblock, 0)
diff --git a/code/game/gamemodes/setupgame.dm b/code/game/gamemodes/setupgame.dm
index 7e70e907ab2..42c0e316acb 100644
--- a/code/game/gamemodes/setupgame.dm
+++ b/code/game/gamemodes/setupgame.dm
@@ -16,12 +16,6 @@
 
 /proc/setupgenetics()
 
-	if(prob(50))
-		GLOB.blockadd = rand(-300,300)
-	if(prob(75))
-		GLOB.diffmut = rand(0,20)
-
-
 //Thanks to nexis for the fancy code
 // BITCH I AIN'T DONE YET
 
diff --git a/code/game/mecha/equipment/tools/work_tools.dm b/code/game/mecha/equipment/tools/work_tools.dm
index 902f088bd3b..7e2c2ddad5e 100644
--- a/code/game/mecha/equipment/tools/work_tools.dm
+++ b/code/game/mecha/equipment/tools/work_tools.dm
@@ -330,8 +330,6 @@
 	name = "cable layer"
 	desc = "Equipment for engineering exosuits. Lays cable along the exosuit's path."
 	icon_state = "mecha_wire"
-	var/datum/event/event
-	var/turf/old_turf
 	var/obj/structure/cable/last_piece
 	var/obj/item/stack/cable_coil/cable
 	var/max_cable = 1000
diff --git a/code/game/objects/items/weapons/mop.dm b/code/game/objects/items/weapons/mop.dm
index 5c00040836d..870b99f0379 100644
--- a/code/game/objects/items/weapons/mop.dm
+++ b/code/game/objects/items/weapons/mop.dm
@@ -10,8 +10,6 @@
 	w_class = WEIGHT_CLASS_NORMAL
 	attack_verb = list("mopped", "bashed", "bludgeoned", "whacked")
 	resistance_flags = FLAMMABLE
-	var/mopping = 0
-	var/mopcount = 0
 	var/mopcap = 6
 	var/mopspeed = 30