Q: "Will seek return on the second floor?" A: "some entities will be returning for the next floor" -Wowzers There was a bug after the Hotel+ update where Seek would appear late (possibly doors 78-86) and because of The Greenhouse being added players could not progress and players would die to Seek. This has been patched.

At the end of the Seek's chases, the next progression door can be opened from a far vicinity. This is due to the fact that the chase usually increases the Door opening range to prevent delays from opening doors. This effect will still go in action until the Door after Seek's chase sequence is opened.If a modifier that decreases movement speed is active, Seek is impossible to survive because the player will be slower than Seek. Because of this, it is impossible to survive Seek unless the player has a Crucifix or Vitamins.

Seek is capable of shapeshifting into virtually anything, although it will likely always be imperfect in some form. [12]Similar to Halt, all other players are rendered invisible during the chase sequence to make it easier to navigate and less crowded. Seek's eyes may be inspired by the horror game Eyes, where the player must collect eyes on the walls to see, where the monster is. Seek may be based off by the Lost Ones in the Bendy and Ink Machine franchise. Both of have humanoid and disproportionate bodies, is aggressive to the player, and is covered with Inky substance around their body. Who says doors are just for walking through? With our amazing collection of doors costumes, you can bring an element of surprise to your next costume party. Imagine turning up at a party as an elegant French door or a rustic barn door. The reactions are guaranteed to be priceless! Seek does not chase the players, it runs towards the correct door to the next room, and players behind its concurrent room are instantly killed.

The old model for Seek was changed because the mesh was not created by the DOORS developers, nor were any of the appendages moveable or poseable. Seek's old model was actually a retextured version of a character in a game called, The Legend of Zelda: Ocarina of Time 3D, where its base origin was a recurring enemy called an ReDead, who is a tall zombie-like monster. However, due to the time it takes for the light to update, players who plays on a graphic less than 5 may need to pay close attention to door sign for the real door or to simply shake their screen to force a lighting update. Dying in a Seek chase and using a revive will not force the player to do the chase again. However, the user must wait until the chase is over. Seek seems to be the secondary antagonist of the game (the Figure being primary) as Seek is guaranteed to spawn, can escape a crucifix, and its chase sequences are one of the major events in the game.

Seek is one of the few entities capable of altering a player's appearance upon death, another notable entity being Figure. The dead bodies of those killed in the chase sequence have a similar texture to Seek.

In the opening cutscene, when Seek starts to run, the player can hear that the audio for Seek's footsteps is not synchronized with the run animation. Seek has 5 UGC items: Seek's Eye, Seek Headphones Seek's Eye 2.0 No Veins, Seek's Eye 2.0 With Veins, and Seek's New Whip.

Seek's eyes can be seen in the Lobby, behind a barricaded section with wooden planks near the initial spawn point. Seek's eyes do not appear in the hallway that Seek spawns in before it spawns. If there is a hallway with Seek's eyes in it, then that means that Seek will not spawn in that hallway, but in a later hallway without Seek's eyes.