Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
2 Zombie monsters You can target 1 of your Level 5 or higher Zombie monsters that is banished or in your GY; place this card in your Spell & Trap Zone as a face-up Continuous Spell, and if you do, Special Summon that monster. While this card is a Continuous Spell: You can target 1 Level 5 or higher Zombie monster you control; destroy 1 monster your opponent controls with ATK less than or equal to that monster. You can only use each effect of "Flying Mary, the Wandering Ghost Ship" once per turn.
--彷徨える幽霊船
--Flying Mary, the Wandering Ghost Ship
--Scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	c:EnableReviveLimit()
	--Link Summon procedure: 2 Zombie monsters
	Link.AddProcedure(c,aux.FilterBoolFunctionEx(Card.IsRace,RACE_ZOMBIE),2,2)
	--Special Summon 1 Level 5 or higher Zombie monster from your GY or banishment
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON)
	e1:SetType(EFFECT_TYPE_IGNITION)
	e1:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e1:SetRange(LOCATION_MZONE)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Destroy 1 monster the opponent controls
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_DESTROY)
	e2:SetType(EFFECT_TYPE_IGNITION)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetRange(LOCATION_SZONE)
	e2:SetCountLimit(1,{id,1})
	e2:SetCondition(function(e) return e:GetHandler():IsContinuousSpell() end)
	e2:SetTarget(s.destg)
	e2:SetOperation(s.desop)
	c:RegisterEffect(e2)
end
function s.spfilter(c,e,tp)
	return c:IsLevelAbove(5) and c:IsRace(RACE_ZOMBIE) and c:IsCanBeSpecialSummoned(e,0,tp,false,false) and c:IsFaceup()
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_GRAVE|LOCATION_REMOVED) and chkc:IsControler(tp) and s.spfilter(chkc,e,tp) end
	if chk==0 then return Duel.GetLocationCount(tp,LOCATION_SZONE)>0
		and Duel.GetMZoneCount(tp,e:GetHandler())>0
		and Duel.IsExistingTarget(s.spfilter,tp,LOCATION_GRAVE|LOCATION_REMOVED,0,1,nil,e,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local g=Duel.SelectTarget(tp,s.spfilter,tp,LOCATION_GRAVE|LOCATION_REMOVED,0,1,1,nil,e,tp)
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,g,1,tp,0)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local c=e:GetHandler()
	if not c:IsRelateToEffect(e) or not Duel.MoveToField(c,tp,tp,LOCATION_SZONE,POS_FACEUP,true) then return end
	--Treat this card as a Continuous Spell
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetProperty(EFFECT_FLAG_CANNOT_DISABLE)
	e1:SetCode(EFFECT_CHANGE_TYPE)
	e1:SetValue(TYPE_SPELL|TYPE_CONTINUOUS)
	e1:SetReset(RESET_EVENT|(RESETS_STANDARD&~RESET_TURN_SET))
	c:RegisterEffect(e1)
	local tc=Duel.GetFirstTarget()
	if tc:IsRelateToEffect(e) then
		Duel.SpecialSummon(tc,0,tp,tp,false,false,POS_FACEUP)
	end
end
function s.destgfilter(c,tp)
	return c:IsLevelAbove(5) and c:IsRace(RACE_ZOMBIE) and c:IsFaceup()
		and Duel.IsExistingMatchingCard(aux.FaceupFilter(Card.IsAttackBelow,c:GetAttack()),tp,0,LOCATION_MZONE,1,nil)
end
function s.destg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsLocation(LOCATION_MZONE) and chkc:IsControler(tp) and s.destgfilter(chkc,tp) end
	if chk==0 then return Duel.IsExistingTarget(s.destgfilter,tp,LOCATION_MZONE,0,1,nil,tp) end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_FACEUP)
	local g=Duel.SelectTarget(tp,s.destgfilter,tp,LOCATION_MZONE,0,1,1,nil,tp)
	local dg=Duel.GetMatchingGroup(aux.FaceupFilter(Card.IsAttackBelow,g:GetFirst():GetAttack()),tp,0,LOCATION_MZONE,nil)
	Duel.SetOperationInfo(0,CATEGORY_DESTROY,dg,1,tp,0)
end
function s.desop(e,tp,eg,ep,ev,re,r,rp)
	local tc=Duel.GetFirstTarget()
	if not tc:IsRelateToEffect(e) or tc:IsFacedown() then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_DESTROY)
	local g=Duel.SelectMatchingCard(tp,aux.FaceupFilter(Card.IsAttackBelow,tc:GetAttack()),tp,0,LOCATION_MZONE,1,1,nil)
	if #g>0 then
		Duel.HintSelection(g)
		Duel.Destroy(g,REASON_EFFECT)
	end
end