Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
Equip only to a "Danger!" monster. It gains 800 ATK/DEF. It cannot be destroyed by card effects. It can make up to 2 attacks on monsters during each Battle Phase.
--未界域捕縛作戦
--Danger! Feets of Strength!
--Scripted by Naim
local s,id=GetID()
function s.initial_effect(c)
	aux.AddEquipProcedure(c,nil,aux.FilterBoolFunction(Card.IsSetCard,SET_DANGER))
	--Atk Up
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_EQUIP)
	e1:SetCode(EFFECT_UPDATE_ATTACK)
	e1:SetValue(800)
	c:RegisterEffect(e1)
	--DEF Up
	local e2=e1:Clone()
	e2:SetCode(EFFECT_UPDATE_DEFENSE)
	c:RegisterEffect(e2)
	--indestructable
	local e3=Effect.CreateEffect(c)
	e3:SetType(EFFECT_TYPE_EQUIP)
	e3:SetCode(EFFECT_INDESTRUCTABLE_EFFECT)
	e3:SetValue(1)
	c:RegisterEffect(e3)
	--extra attack
	local e4=Effect.CreateEffect(c)
	e4:SetType(EFFECT_TYPE_EQUIP)
	e4:SetCode(EFFECT_EXTRA_ATTACK_MONSTER)
	e4:SetValue(1)
	c:RegisterEffect(e4)
end
s.listed_series={SET_DANGER}