From The TimeSplitters Wiki

Med-Unit 6
Unlocked by	Default
Species	Robot
Size	Small
Accuracy	N/A
Agility	5
Stamina	5
Fire Proof	8
Shock Proof	2
Default AI	1
Native TimeZone	2243
First Appearance	TSFP Story Mode
Relations	N/A
Games	TSFP

TS1 Gesture	N/A	TSFP Gesture	Spins around with arms out, bleeping
TS2 Gallery	N/A	TSFP Gallery	The Ultra Net robots thought life at the base was becoming too serious,so med-units were introduced to give the place a more jolly atmosphere.

Med Unit is a small character, but he floats making him easier to shoot than the Monkey. In story mode, you can grab onto him using your arm device and throw him causing an explosion, damaging anyone within the explosion range.