U-60 is currently the fourth and final entity to roam Section U and assumes the role of a runner-type entity like most of its predecessors. It is the successor to another runner-type entity, that being U-55, and it currently doesn't have any successor(s).
It marks its debut at room U-060 — hence its name — and will begin its moving sequence by idling by the metal doors of the section. After a few seconds, it will traverse through the rooms while emitting low, distorted static-like sounds that stir like A-60. When reaching its destination at the latest room, it will remain idle at the center of the room in an identical manner to the latter before despawning. In some cases, when the entity reaches the latest room, it will still idle at the center of the room, but it will then suddenly depart from the room and will begin backtracking for a moment. After backtracking through a few rooms, it will gain a much quicker speed, then rush back towards the last room to despawn via contact with the latest unopened door.
After the player's initial encounter with the entity, they simply have to use everything they've learned about the previous entities (U-10, U-40 & U-55) and evade them to try to get as far as they can into the section.
If the player is unable to locate any nearby hiding spots in time, U-60 will instantly kill the player upon making contact with it, bringing them back to the lobby, leaving them to progress back towards where they left off if they desire to, as the entity will not penalize the player in some way like some of its predecessors once did (U-10 would've kicked the player from the game, U-40 would've brought the player to Interminable Rooms' banland.)
During the Section U Hoax, the section and the two previously mentioned entities were showcased, though U-55 (made a brief appearance on the computer at the section's lobby) and U-60 weren't shown, therefore it is unknown if they were included in the hoax (though it is likely since they're included in the Section U Hoax Recreation, which was made by one of the hoax's creators).
As of now, and likely from now on, U-60 remains as the final entity to roam the section, thus making it another entity players must be on the look out for when traversing further into the section. Unlike its predecessors, it makes quite infrequent appearances, though it makes up for this by switching between its two mechanics. It can be seen as a moderately difficult entity for this, though it can easily be avoided.
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