From The TimeSplitters Wiki

Insect Mutant
Unlocked by	Beat "Village" on Hard in 2m 20s, Challenge> Simian Shootout with Bronze/Silver or higher
Species	Mutant
Size	Normal
Accuracy	6
Agility	3
Stamina	9
Fire Proof	N/A
Shock Proof	N/A
Default AI	3
Native TimeZone	1950
First Appearance	TS1 Story Mode
Relations	None
Games	TimeSplitters & TimeSplitters 2

Insect Mutant is a man's body with a large fly through his stomach. The fly's head is classified as the character's head, and firing at the man's head behind the fly is not a headshot. on his back its stands "Franks motors".

TS1 Gesture	Runs around then runs off screen.	TSFP Gesture	N/A
TS2 Gallery	Frank was always telling folks about UFOs in the skies over his garage but nobody believed his tales of alien abductions. Look at him now- what do you think?	TSFP Gallery	N/A