WithBioShock4presumably still in development, and no other news available on the highly anticipated sequel, fans continue to revisit the original games. One aspect ofthe firstBioShockandBioShock 2that made them so popular was the inclusion of the Little Sisters and the story behind them.

Little Sisters are young girls that were abducted from all around Rapture and mentally conditioned to harvest ADAM, a chemical substance that can rewrite genetics and results in special abilities.Little Sisters are usually accompanied by a Big Daddy, a human that controls a large, armored suit. Because of their designs and unique stories, they’ve been quite popular when it comes to fan art and costumes.

RELATED:BioShock Infinite Fan Creates Real Life Vigor Bottles

This Halloween, a dedicatedBioShockfan on TikTok by the name of Zootboots has created an impressive Little Sister costume with a glowing ADAM syringe. The Little Sisters inBioShockcan typically be found wearing similar outfits, with the classic purple dress standing out above the rest. Zootboots’s Halloween costume captures that ragged and bloodied outfit look quite authentically. Additionally, the syringe they created looks great, and the glow it emanates is sure to draw some eyes on a dark Halloween night.

The ADAM syringe that is included in the Halloween costume is an item that the Little Sisters use in theBioShockseries toharvest ADAM from dead splicers. Players inBioShockcan also use these syringes on themselves to absorb the ADAM in them. It remains to be seen if this Little Sister will be accompanied by Mister Bubbles, a nickname given to Big Daddies, though the outfit would surely look great on its own.

The Little Sister Halloween costume is quite impressive, and the music that is played during the TikTok really places viewers back in Rapture. Halloween has seen many great costumes over the years, such as acustom-made Samus outfit made with LED lights. Many more interesting costumes are sure to pop up tomorrow when people go trick-or-treating.

Although Little Sisters were quite an important part ofBioShock 1and2, they were reasonably excluded fromBioShock: Infinite, as that game took place in a completely different setting than Rapture. It’s rumored thatBioShock 4will also take place in a different setting, so it’s possible Little Sisters won’t return for that sequel, either. Regardless of whether or not Little Sisters come back inBioShock 4, they have left quite a mark on theBioShockseries, and their iconic look will be remembered for quite some time.