The Plasma Grenade is a large ball of fiery plasma that sticks to the first thing it hits when thrown, such as the walls, ceilings, floors, and other players.
The Plasma Grenade exists in TS2 but could only be used through the alternate fire function of the Plasma Autorifle.
It has a fairly large blast radius and can still do a lot of damage.
The player can hold down the grenade button to charge up his/her throw and toss the grenade a fair distance.
A Plasma Grenade Is different than a normal Grenade in a lot of ways. First, the Plasma Grenade will stick to any person you throw it at. Second, when a bot is stuck with a Plasma Grenade, it will run away screaming; Almost identical to when you light a bot on fire with a flamethrower.
It also does not have a very large blast radius, and is not favored by many players.
The Plasma Grenade is used in the TimeSplitters 2 Story Mode level Robot Factory and Space Station through the Plasma Autorifle. It is found in th Story Mode levels Time To Split, Machine Wars, and Something to Crow About.