Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
This card is treated as a Normal Monster while face-up on the field or in the Graveyard. While this card is face-up on the field, you can Normal Summon it to have it be treated as an Effect Monster with this effect: ● This card can attack twice during the same Battle Phase.
--ヘルカイザー・ドラゴン
--Chthonian Emperor Dragon
local s,id=GetID()
function s.initial_effect(c)
	Gemini.AddProcedure(c)
	--Can attack twice
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_EXTRA_ATTACK)
	e1:SetCondition(Gemini.EffectStatusCondition)
	e1:SetValue(1)
	c:RegisterEffect(e1)
end