Grammar and something.

code/modules/mob/living/simple_animal/hostile/megafauna/colossus.dm

@@ -482,7 +482,7 @@ Difficulty: Very Hard
 	. = ..()
 	if(!.)
 		return
-	for(var/i in get_sub_areas(src, include_base = TRUE))
+	for(var/i in get_sub_areas(src))
 		var/area/A = i
 		if(A.outdoors || (A in affected_targets))
 			continue

code/modules/power/apc.dm

@@ -180,7 +180,7 @@
 		name = "\improper [A.name] APC"
 		stat |= MAINT
 		update_icon()
-		addtimer(CALLBACK(src, .proc/update), 5)
+	addtimer(CALLBACK(src, .proc/update), 5)
 
 	GLOB.apcs_list += src
 

code/modules/power/power.dm

@@ -382,7 +382,7 @@
 	return null
 
 /area/proc/get_apc()
-	var/target = master_area ? master_area : src
+	var/target = base_area ? base_area : src
 	for(var/obj/machinery/power/apc/APC in GLOB.apcs_list)
 		if(APC.area == target)
 			return APC