Teleport 2.0

"I-Teleport!"
Entity ID	5.100.419
Recharge Time	4 rooms
Item Pool	Crane Game Treasure Room
Collection Grid	(page 4, column 14, row 3) (page 4, column 14, row 3) (page 4, column 15, row 3)

Teleport 2.0 is an activated item added in The Binding of Isaac: Afterbirth.

Effects

• When used, teleports Isaac to the next room that has not been explored yet.
  • The room that Isaac is teleported into will be touching an explored room, if possible.
  • When used in a room with enemies in it, Isaac is teleported back into the same room, resetting it.
  • The order of types of rooms is predetermined, first available on this list chosen:
    1. Grave Room.
    2. Normal rooms.
    3. Boss Room.
    4. Super Secret Room.
    5. Shop.
    6. Treasure Room.
    7. Sacrifice Room
    8. Dice Room.
    9. Library.
    10. Curse Room.
    11. Mini-Boss Room.
    12. Challenge Room / Boss Challenge Room.
    13. Bedroom.
    14. Arcade.
    15. Vault.
    16. Secret Room.
    17. Devil Room / Angel Room.
    18. I AM ERROR room.
  • With every room above on the level mapped, Teleport 2.0 will always teleport into the I AM ERROR room.

Notes

• Crawl Spaces, Black Markets, the Boss Rush room, the ??? entrance, Mega Satan, alternate floor entrances, or the Ultra Secret Room cannot be teleported into.
• In Cathedral or Sheol, using the I AM ERROR room exit will bring Isaac to The Chest or Dark Room respectively.
  • This works even if Isaac has the wrong corresponding item ( The Polaroid/ The Negative) for that floor.
• On Chest or Dark Room, Teleport 2.0 will teleport Isaac to the Devil/Angel room instead of the I AM ERROR room.
• On The Void, using Teleport 2.0 in the I AM ERROR room will teleport Isaac to The Void again, allowing the floor to be restarted. The floor regenerates with new rooms and enemies. This can be done multiple times.
• Using Teleport 2.0 on The Void will only Isaac to the Devil/Angel room instead of the I AM ERROR room.
• Using Teleport 2.0 on the last floor of a Daily Run (where the trophy spawns) won't take Isaac to the I AM ERROR room. Instead, it will keep teleporting him to the Devil Room/Angel Room if all other rooms have been explored.
• Using Teleport 2.0 in the Ascent sequence will teleport Isaac to the Angel/Devil Room if all other rooms have been explored. After returning from the Angel/Devil Room, using the Teleport 2.0 again will teleport Isaac to the I AM ERROR room.
  • Because Secret/Super Secret Rooms do not spawn in the Ascent, Isaac is able to teleport to the Angel/Devil Room once all regular rooms have been explored, making it extremely easy to gather powerful items before reaching Home.
  • This strategy also works in Home, taking Isaac to an Angel/Devil Room if all rooms have been explored. Isaac cannot use this to reach the hidden closet room containing Tainted characters, however. Using it after visiting the Angel/Devil Room will not teleport Isaac to the I AM ERROR room, and will instead merely teleport to the same Angel/Devil Room again.
• Using Teleport 2.0 during the The Beast fight will teleport Isaac to a random spot on the screen without interrupting the fight.
• On Downpour II in the Mirrored World, Isaac will teleport to the Ultra Secret Room before the I AM ERROR room. Although no items spawn in it, this can be useful to find the room in the normal world with the Red Key.
  • For the next use in the Mirrored World, Isaac will teleport to the I AM ERROR room of the normal floor, not a mirrored I AM ERROR room.
• After killing Mom's Heart in Mausoleum/Gehenna, Teleport 2.0 will teleport Isaac to the I AM ERROR room with trapdoor to Corpse, even if there are unvisited rooms on the floor.

Trivia

• Teleporting to the I AM ERROR room when all rooms on the map are explored is a possible failsafe for the error the item would otherwise cause, as no other valid unvisited rooms would exist at that point.
• This item is one of the two reliable ways to reach the I AM ERROR room in-game, the other being the Blank Card + ? Card interaction — another paradox.

Seeds

PC V2TF YNF7 (Treasure Room adjacent to spawn)