From The TimeSplitters Wiki

Stone Golem
IMAGE NEEDED
Unlocked by	TS2: Complete Aztec on Normal/Hard TS3: Default
Species	Golem
Size	Large
Accuracy	8
Agility	3
Stamina	9
Fire Proof	8
Shock Proof	8
Default AI	5 stars
Native TimeZone	1920 and before
First Appearance	TS2 Story
Relations	Wood Golem
Games	TS2, TimeSplitters: Future Perfect

Stone Golem is one of the strongest characters in the games.

TS1 Gesture	N/A	TSFP Gesture	Flexes Arms infront of stomach and grunts.
TS2 Gallery	The ancient powers of the Temple of T'hochek have imbued the very rocks with life. These mighty creatures possess the strength of a hundred men. No one has ever dared to ask what they keep in their little sacks.	TSFP Gallery	The secret’s out--he keeps his tiny stones in his little sack.

1920 Aztec Ruins

The Stone Golems guard the Aztec temple, and the Time Crystal itself. The only weapon that can damage them is the Grenade Launcher, which isn't available until the end of the mission. The rest of the Stone Golems can be killed by making them fall down a pit.