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.
Gesture
Spins around with arms out, bleeping
Speed
Stamina
Shock Proof
Fire Proof
5/8
5/8
2/8
8/8
Med-Unit 6 is an UltraNetRobot and is the only character who has appeared in Story levels that floats. In story mode, you can grab onto him using the Temporal Uplink and throw him causing an explosion, damaging anyone within the explosion range.
Aside from that, they are completely harmless to anyone, usually just serving as comic relief. They never attack the player, regardless of them being attacked, and all but the first one can be ignored to no consequence (the first one will be killed by R-110 because it is in his way).
Trivia
Med Unit 6's low-poly model is drastically bigger than his high-poly model.
In the German version of TimeSplitters Future Perfect, he is titled "Medibot 6".
His beeping sounds in his gesture are similar to R2-D2's from Star Wars.