From The TimeSplitters Wiki

Siamese Cyborg
Unlocked by	Cyberden on Easy in 49s
Species	Cyborg
Size	Normal
Accuracy	N/A
Agility	N/A
Stamina	N/A
Fire Proof	N/A
Shock Proof	N/A
Default AI	N/A
Native TimeZone	2005
First Appearance	TS1 Story Mode
Relations	None
Games	TS1

Siamese Cyborg consists of two bodies with one pair of legs. The second body is attached by the side and back of the first with both of their heads are connected as well.

TS1 Gesture	Says "Urg! Come on" whilst taunting the player with hands. Then points towards player saying "You!" then points to himself, "and me! Let's go!"	TSFP Gesture	N/A
TS2 Gallery	N/A	TSFP Gallery	N/A

Headshots

Siamese Cyborg has two heads attached toghether. Each head counts as a headshot, so shooting either one produces the same effect.