Let's talk about U section entities
U-10 is the first entity players would encounter when traversing Section U, making its debut on room U-010 hence its name. It is so far the slowest of its section, with the quickest currently being its successor, U-40 who players will encounter 30 rooms ahead of them. U-10 is an Monster that was possibly added in an update succeeding part II of the Entity Extravaganza update along with its section and entities, and like its namesake, U-10 moves in a similar manner to A-10 but is slightly quicker and has a very unique mechanic. U-10 is an Monster that was possibly added in an update succeeding part II of the Entity Extravaganza update along with its section and entities, and like its namesake, U-10 moves in a similar manner to A-10 but is slightly quicker and has a very unique mechanic.
It is currently the most basic entity within Section U and is the first runner-type Monster within said section, second being U-40. When making its way towards its destination it will effuse sounds similar to A-10, though it is vociferously more sped-up and slightly indistinct. Its sound cue when spawning is the same bang sound the aforementioned entity makes, though under the same conditions.
U-10 can spawn more commonly after you reach to U-10, but it can spawn even at earlier doors than U-10. It is really rare, so that is why you commonly don't encounter U-10 that often at earlier doors.
Currently, not much is known more about the entity as it is impossible to encounter it due to players having to traverse all the way to V-5000 to get the keycard to access the section it roams, this is difficult due to ROBLOX crashing beyond V-1250. So far, it is only accessible via exploits.
U-10 appears to have intermixed properties from A-10 and X-10, as it shares similar eyes to A-10 as well as the same toothy mouth, only that it is inconspicuously compressed and frowns rather than smile. The properties it shares with X-10 is its similar cyan color and identically colored glow.
