"Portal" redirects here. If you were looking for the mappack, see 1.6 Portal Mappack.
The Portal Gun, or Aperture Science Handheld Portal Device (ASHPD), is an experimental tool used to create two portals through which objects can seamlessly pass. Used in the Aperture Science's testing tracks, it is a Test Subject's primary tool to complete each test, as well as being a mandatory travel aid outside of testing areas. Chell has this tool throughout the majority of the two Portal games.
Portals seamlessly connect two areas in the game, preserving speed, but modifying the angle accordingly. Portals themselves are snapped to the tile grid, so it is impossible to place a portal between two blocks.
The blocks on which the portal is placed is given a special Mask, so as to allow an entity to pass through the portals as expected. An enemy with portalling disabled can still pass through the portalled block, since it has a different collision mask to an ordinary tile.
While this ability was not present in the Portal series, in Mari0, the player can reset or destroy their portals at will. This is otherwise caused by passing through an Emancipation Grill.
The Portal Gun Pedestal is an Entity in Mari0: SE and Alesan's Entities. Upon being touched by the player, Their Portal Gun gains the ability to fire whichever portal colors are set, potentially overriding the level's settings. Unlike Powerups, it is not a permanent upgrade, as the Portal Gun the player has is decided by a Level Flag. As such, a Portal Gun gained from a pedestal will not persist through respawning, so any mappack author must take care that such events do not occur.
Pre-Placed Portals[]
As of Mari0: SE, portals can be placed in the level by the mappack author and triggered using standard links. The system consists of two entities, one for the blue portal, and one for the orange. Additionally, the player ID of the portals can be set on the entites. They can either link with a player's portals with a low ID, or stand by themselves with a very high ID.
Trivia[]
The Portal Gun's range is much more limited in Mari0, as the projectile disappears if it goes offscreen. The gun's canonical range, as shown in Portal 2, is large enough to create a portal on the moon from Earth.
It is unknown how Mario obtained the portal gun in Mari0, since there is no real story mode. Complicating things further, GLaDOS is not present in the base game in any capacity.
In Mari0 1.6 and below, it is impossible to place your portals on different sides of the same block, despite Mari0's icon on Stabyourself.net showing exactly this. It is possible in SE, though.
