Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Special Summon 1 "Mimighoul" monster from your hand or Deck to your field, or in face-down Defense Position to your opponent's field, then you can change 1 face-up monster on the field to face-down Defense Position. You can banish this card from your GY, then target any number of "Mimighoul" cards you control; return them to the hand. You can only use 1 "Mimighoul Room" effect per turn, and only once that turn.
--ミミグル・ルーム
--Mimighoul Room
--Scripted by Hatter
local s,id=GetID()
function s.initial_effect(c)
	--Special Summon 1 "Mimighoul" monster
	local e1=Effect.CreateEffect(c)
	e1:SetDescription(aux.Stringid(id,0))
	e1:SetCategory(CATEGORY_SPECIAL_SUMMON+CATEGORY_POSITION)
	e1:SetType(EFFECT_TYPE_ACTIVATE)
	e1:SetCode(EVENT_FREE_CHAIN)
	e1:SetHintTiming(0,TIMING_MAIN_END|TIMINGS_CHECK_MONSTER_E)
	e1:SetCountLimit(1,id)
	e1:SetTarget(s.sptg)
	e1:SetOperation(s.spop)
	c:RegisterEffect(e1)
	--Return any number of "Mimighoul" cards you control to the hand
	local e2=Effect.CreateEffect(c)
	e2:SetDescription(aux.Stringid(id,1))
	e2:SetCategory(CATEGORY_TOHAND)
	e2:SetType(EFFECT_TYPE_QUICK_O)
	e2:SetProperty(EFFECT_FLAG_CARD_TARGET)
	e2:SetCode(EVENT_FREE_CHAIN)
	e2:SetRange(LOCATION_GRAVE)
	e2:SetHintTiming(0,TIMING_MAIN_END|TIMINGS_CHECK_MONSTER_E)
	e2:SetCountLimit(1,id)
	e2:SetCost(Cost.SelfBanish)
	e2:SetTarget(s.thtg)
	e2:SetOperation(s.thop)
	c:RegisterEffect(e2)
end
s.listed_series={SET_MIMIGHOUL}
function s.spfilter(c,e,tp,f1,f2)
	if not c:IsSetCard(SET_MIMIGHOUL) then return false end
	return (f1 and c:IsCanBeSpecialSummoned(e,0,tp,false,false))
		or (f2 and c:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEDOWN_DEFENSE,1-tp))
end
function s.sptg(e,tp,eg,ep,ev,re,r,rp,chk)
	if chk==0 then
		local f1=Duel.GetLocationCount(tp,LOCATION_MZONE)>0
		local f2=Duel.GetLocationCount(1-tp,LOCATION_MZONE,tp)>0
		return Duel.IsExistingMatchingCard(s.spfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,nil,e,tp,f1,f2)
	end
	Duel.SetOperationInfo(0,CATEGORY_SPECIAL_SUMMON,nil,1,tp,LOCATION_HAND|LOCATION_DECK)
	Duel.SetPossibleOperationInfo(0,CATEGORY_POSITION,nil,1,PLAYER_EITHER,LOCATION_MZONE)
end
function s.spop(e,tp,eg,ep,ev,re,r,rp)
	local f1=Duel.GetLocationCount(tp,LOCATION_MZONE)>0
	local f2=Duel.GetLocationCount(1-tp,LOCATION_MZONE,tp)>0
	if not (f1 or f2) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_SPSUMMON)
	local tc=Duel.SelectMatchingCard(tp,s.spfilter,tp,LOCATION_HAND|LOCATION_DECK,0,1,1,nil,e,tp,f1,f2):GetFirst()
	if not tc then return end
	local b1=f1 and tc:IsCanBeSpecialSummoned(e,0,tp,false,false)
	local b2=f2 and tc:IsCanBeSpecialSummoned(e,0,tp,false,false,POS_FACEDOWN_DEFENSE,1-tp)
	local op=Duel.SelectEffect(tp,
		{b1,aux.Stringid(id,2)},
		{b2,aux.Stringid(id,3)})
	local target_player=op==1 and tp or 1-tp
	local summon_pos=op==1 and POS_FACEUP or POS_FACEDOWN_DEFENSE
	if Duel.SpecialSummon(tc,0,tp,target_player,false,false,summon_pos)==0 then return end
	if tc:IsFacedown() then Duel.ConfirmCards(tp,tc) end
	local g=Duel.GetMatchingGroup(Card.IsCanTurnSet,tp,LOCATION_MZONE,LOCATION_MZONE,nil)
	if #g==0 or not Duel.SelectYesNo(tp,aux.Stringid(id,4)) then return end
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_POSCHANGE)
	local pc=g:Select(tp,1,1,nil):GetFirst()
	if pc then
		Duel.HintSelection(pc)
		Duel.BreakEffect()
		Duel.ChangePosition(pc,POS_FACEDOWN_DEFENSE)
	end
end
function s.thfilter(c,e)
	return c:IsFaceup() and c:IsSetCard(SET_MIMIGHOUL) and c:IsAbleToHand() and c:IsCanBeEffectTarget(e)
end
function s.thtg(e,tp,eg,ep,ev,re,r,rp,chk,chkc)
	if chkc then return chkc:IsControler(tp) and chkc:IsLocation(LOCATION_ONFIELD) and s.thfilter(chkc,e) end
	if chk==0 then return Duel.IsExistingTarget(s.thfilter,tp,LOCATION_ONFIELD,0,1,nil,e) end
	local g=Duel.GetMatchingGroup(s.thfilter,tp,LOCATION_ONFIELD,0,nil,e)
	Duel.Hint(HINT_SELECTMSG,tp,HINTMSG_RTOHAND)
	local tg=g:Select(tp,1,#g,nil)
	Duel.SetTargetCard(tg)
	Duel.SetOperationInfo(0,CATEGORY_TOHAND,tg,#tg,tp,0)
end
function s.thop(e,tp,eg,ep,ev,re,r,rp)
	local tg=Duel.GetTargetCards(e)
	if #tg>0 then
		Duel.SendtoHand(tg,nil,REASON_EFFECT)
	end
end