If your opponent controls a monster and you control no monsters, you can Normal Summon this card without Tributing as a Level 4 monster.

When this card is Normal Summoned: You can target up to 2 "Gagaga" monsters in your Graveyard, except "Gagaga Head"; Special Summon them, also you cannot Special Summon monsters for the rest of this turn, except by an Xyz Summon that uses only "Gagaga" monsters as materials.