However, they are incompetent and presumably in artificial pain from their transformation. They were created by Wheatley to solve test chamber puzzles in the absence of test subjects. They have the front of two Sentry Turrets welded together, with the back end being the box. They are mute and have little to no personality.ДЇrankenturrets, also known as ' Box Creatures' or ' Turret Monsters', are mechanical hybrids of two Sentry Turrets and an Aperture Science Weighted Storage Cube.

By redirecting their rockets with portals, Chell can use them to progress and eventually uses them during her fight with GLaDOS. The slowly turn and lock onto Chell before firing a rocket that can destroy fragile items. They are spherical cores with a green eye in the center, attached to a rocket launcher and a pivoting anchor. Rocket Turrets are found at the end of Portal. They tend to be more sarcastic and obnoxious than Sentry Turrets. They pose no threat to the player, and must be used in Chapter 5 of Portal 2, where Chell and Wheatley sabotage the turret production lines by replacing them with Defective Turrets. Some variations are also ones with plating, but are laying horizontally instead of vertically. Whereas the standard white turrets speak in a calm and friendly tone, the Defective Turrets speak in a more sarcastic and humorous way. They lack bullets and speak in a lower, more gravelly voice compared to their working counterparts. They lack the outer casing, leaving their endoskeletons and machinery visible.

However, GLaDOS charges him with guarding a room, and he ends up praised by the other turrets for doing a good job.Дefective Turrets, or ' Crap Turrets', are unfinished and defective Sentry Turrets. It appeared in a small comic strip and was an outcast because of an attached red nose and antlers. Randolph the Red-Nosed Turret is a parody of Rudolph the Red-Nosed Reindeer. It can later be seen on the Turret Redemption Line on the way to incineration, but can be either saved or ignored by the player. Each time it is encountered, it explains that it is different, and then makes a remark that will become significant in later events in the game. The Oracle Turret is a unique Sentry Turret found in Portal 2. Their fire could potentially wake up babies and children, and the turrets were programmed to soothe them with singing should they be disturbed. According to 'Turret Lullaby', Sentry Turrets (and the Prima Donna Turret) are programmed to sing and be friendly due to their original intended use as home security. Sentry Turrets are usually pleasant and remorseful, though unrelenting. The turrets also are supposed to come in hundreds of designer colors, though this is never seen in-game. Sentry turrets cannot move freely and can only be moved by an outside force. They have twin machine guns on either side of them and fire on sight.

A single red eye lies behind the casing that emits a targeting laser. Three small, claw-like legs emerge from the bottom and keep them upright. They are elongated, oval machines with smooth white casing. Sentry Turrets are the standard turret type seen in the game.

Sentry Turrets and Defective Turrets are seen, as well as the Animal King in the background. Turrets appear in the Portal pack for Lego Dimensions. According to the 'Turret Lullaby' comic that comes with the Portal 2 Soundtrack: Songs to Test By Collector's Edition, they were originally intended to be marketed for home and office security.ДЄfter Aperture got into human testing, the turrets were modified to serve as lethal obstacles in test chambers.ДЄfter GLaDOS releases Chell, the Turrets turn friendly and sing an opera song for her as Chell rides an elevator to the surface. The turrets were created some time in the early days of Aperture Science's technological days.

Portal turret in real life