Sentry

Sentry is a levitating Commando Elite robot featured in the PlayStation 1 game. It is not seen in the film.

Manual Description
''This flying food processor is programmed to slice and dice all Gorgonites. Featuring experimental mag-lev propulsion and motion-sensitive targeting.''

Appearance
The Sentry is a sleek purple robot with a rounded square/diamond shaped "head". The front of the hull features a red horizontal scanner lense along the left and right surfaces of the head. The lower body of the Sentry consists of two laser cannon barrels fixed to a swivel chassis connected to the "head". The maglev components that keep the Sentry repulsed off the ground are probably stored either in the head or the body of the unit (or both) as the lower body is constantly swinging left/right even while the Sentry is idle in-place. The head remains stabilized and fixed facing the direction the Sentry is focusing on at any given time while the previously mentioned lower body continues to swing freely.

Gameplay
In-game, the Sentry floats around the battlefield usually directly above the player's immediate line of fire (overhead) but, on rare ocassions descends to eye-level. When engaging the Sentry, it tries to strafe in a circular motion to evade projectiles. It has a relatively slow rate of fire; slightly slower than the Bipod but, faster than the Generator.

One Player Mode

 * Floating Fortress
 * Creepy Caverns
 * Space Ship
 * Nuclear Mine
 * Garrison Prime

Two Player Mode
Sentry can be summoned by Major Chip Hazard on these maps:
 * Spirit Bog
 * Hall Of Patriots

Trivia

 * Using the in-game lore's logic, the Sentry is not featured on the Canyon Village level because the Sentry would require a magnetic surface for its internal magnets to propel off of. Since the playable area consists primarily of wooden walkways, the Sentry would be incapable of floating on/off of the walkways.
 * The Sentry is, however, featured on the level, Floating Fortress, because the ship is made of presumably magnetic sheet metal; making the entire ship a surface that the Sentry can traverse.
 * The manual describes the Sentry as resembling a "food processor" (blender) capable of "slicing and dicing" but, this may simply be a visual joke from the developers since the Sentry does not actually feature any edged/bladed weapons.