The SentryBots appeared in TimeSplitters 2 as a type of Robot adapted by the Machinist to help with security. They are large Robots with slow agility and high stamina level. The SentryBot appears immune to headshots, despite having an apparent 'head' section.
|Unlock||Arcade League > Amateur League > It's a Blast > Night Shift with a Gold or better|
|Gallery||Adapted from old security robots by the Machinist, the SentryBots are programmed to kill anything that moves.|
The SentryBot first appears in TimeSplitters 2. Although they "technically" appear in the Story mode mission set at the Robot Factory, it is actually their larger, non-playable counterpart that appears. Outside of Story mode, it makes several appearances in the Arcade League, as well as a single appearance in a Challenge and a bot set.
- On Robot Factory, Night Shift and Demolition Derby, a non-playable version of the SentryBot is used.
- The SentryBot's character model seems to draw inspiration from the Super Battle Droid from Star Wars.
- ChassisBot and SentryBot reuse Float Alien's voice clips, albeit modified with a metallic clank sound. Robot Louis Stevenson, GOLIATH SD/9, INSETICK and PROMETHEUS reuse them in TimeSplitters Future Perfect.