| Gel adhesivo
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Esta mecánica was mentioned to allow players to stick to wherever the gel was placed. It was cut from the game when play-testers complained of motion sickness.
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| Androide
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En la carpeta «scripts» de Portal 2, hay un archivo llamado «npc_sounds_android». The file references sounds that were not shipped with the game, nor does attempting to spawn the npc yield any results. May be a reference to the "Android Hell" GLaDOS has mentioned.
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| Pollo
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Not much is revealed of the chicken, but concept arts released revealed that a giant chicken may have been a boss for either the prequel to Portal or early stages of Portal 2. Minor evidence of the chicken's leftover files are in the "scripts" folder of Portal 2's directory files.
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| F-STOP
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Esta mecánica was originally intended to be the primary handheld testing element for a prequel to Portal. The developers very much praised the concept but after the prequel itself received negative feedback from playtesters as they were expecting a sequel with the pistola de portales, the F-Stop project was canceled and it was decided to keep la mecánica disclosed to reserve for another potential game. In 2020, it was revealed to be a camera which could store photographed objects and place them, possibly rescaled.[cita requerida]
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| Torreta de suelo
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The Hover Turret may have been intended for Portal 2, and its primary attack is a blue laser beam that brings a similar injury effect as the rayo térmico disuasorio. No hay ni diseños conceptuales de esta variante de torreta, pero hay una captura de pantalla de The Final Hours de Portal 2 donde se ve un grupo de núcleos de personalidad que parecen versiones de suelo de las torretas de cohetes. En la misma línea, se encuentran también unas texturas sin uso de la pantalla del sistema de ventilación neumática diversa, mostrando núcleos de personalidad con cohetes en su interior, por lo que podría ser la torreta de suelo. Se puede incluso generar en el juego, aunque sin IA ni modelo asignado.
Comando para generar: ent_create npc_hover_turret
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| Maniquís
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The mannequins were used as a testing element for the F-Stop, similar as to how the torretas were for the pistola de portales. According to the The Final Hours de Portal 2, the mannequins appear to be sentient robots that would later rise against Aperture Science in the prequel to Portal. Along with the prequel and F-Stop mechanic, the dummies were ultimately cut. A deactivated male crash dummy was kept in the release of Portal 2, used as a target for the torretas' firing range.
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| Paint Fizzler/es
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Paint Fizzlers are an unused fizzler variant which destroys gel instead of portals. Any gel will splatter on contact with the field, and cubes will be cleaned on contact. It does not affect the player. The particle left in the game (paint_cleanser) appears as a red version of the Portal 1 fizzler field. The entity is used in some maps to prevent players from placing gel on certain surfaces to cheat puzzles.
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| Ventilación neumática diversa
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This type of mechanic was first introduced in a demo of the same name, displaying its abilities to pull objects at a high force. This mechanic is kept as a traveling system around the tube networks. Valve decided this element was not versatile enough to be included in any maps, but it is still fully functional.
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| Gel reflector
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El gel reflector fue reemplazado por el gel adhesivo en las herramientas de Portal 2 tras la actualización Peer Review. Iba a funcionar de forma similar al cubo de redirección disuasoria, que permitía reflejar un rayo térmico disuasorio. Quedó sin uso por motivos desconocidos.
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| Self-Esteem Field
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Self-Esteem Field was supposed to slow you down. Effect of Self-Esteem Field is pre-set to last 5.5 seconds upon activation; during this period, time for the player is slowed down fivefold by default while the field of view is decreased, a color overlay is displayed, and a set of sound effects is played. [2]
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| Torreta de cohetes
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An enemy featured in Portal, the Rocket Turret was apparently to make a reappearance in Portal 2, as evidenced by files found the «scripts» en los directorios de Portal 2. It can be spawned in-game, albeit without a proper model, missing sounds and somewhat broken AI.
Comando para generar: ent_create npc_rocket_turret
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| Zombi
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En la carpeta «scripts» de Portal 2, hay un archivo llamado npc_sounds_zombie_aperture. The file references sounds that were not shipped with the game, nor does attempting to spawn the npc yield any results.
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