From The TimeSplitters Wiki

The original author of Nikki does not have any further information on this article. The author may return to finish the article when information has been gathered, however they welcome anyone to expand on this article.

Nikki
Unlocked by	Elite League > One Shot Thrills > Nikki Jinki Bricky with Gold or Better
Species	Human?
Size	Normal
Accuracy	6
Agility	3
Stamina	6
Fire Proof	N/A
Shock Proof	N/A
Default AI	3
Native TimeZone	1924
First Appearance	TS2
Relations	Jinki (Sister)
Games	TS2

TS1 Gesture	N/A	TSFP Gesture	N/A
TS2 Gallery	Twins from a tiny Oriental village, Nikki and Jinki were sold to the Ringmistress when they were both babes in arms. Strangely, each claims to be the elder sister.	TSFP Gallery	N/A

Nikki is a character in TimeSplitters 2 that can be unlocked for arcade. She has a human like face on the front of her head, and a monster like one on the back, same as the one found on the front face of her sister, Jinki. Also, she is a freak in the circus. To unlock, you need a gold medal on Nikki Jinki Bricky challenge in arcade mode.