

(Current bug where they will start to close to you and you cannot get away in time) Unlike other Mulligans, they will chase instead of fleeing from you, and explode upon impact. Mulliboom - Mulligans with a bomb in their head.Fat Fly - Pooter that has a body resembling a Boil which fires 2 blood shots at once.Big Spider - Large black spiders that spawn two small spiders when killed.(Picture of the correct hopping spiders?) Some of them replace where Hoppers would be. Trite - Fast, hopping spiders similar to Hoppers, but capable of jumping much further and faster.If they have no direct line of sight to the player, they may stop moving and wait until line of sight is achieved. Their movements are difficult to predict, sometimes moving random directions and distances while other times be-lining directly toward the player. Spider - Small black spiders that skitter sporadically across the floor.It has something specific inside, which depends on the backdrop of the room. This room can be identified from the normal Secret Room by the unique tune that plays when it is opened and the darker icon on the map. It is also possible to have the same book spawn on both pedestals. This room gives you 2 books to choose from and requires a key to unlock the door. The door itself looks identical to that of the Shop. This room can be identified from the Book icon on the minimap. You must have only 1 red heart, 1 half red heart, or no red hearts to go inside (Not including Soul Hearts). This room can be identified from the normal Challenge Rooms by the additional skull at the top of the barred door and a bloody sword on the map. There is also a very rare possibility for the Sacrifice Room to drop Devil Room items, such as Brimstone or The Nail.Ī special Challenge Room that always contains a Boss Room item. It is possible to use the Book of Shadows to spend no life but make the chest appear. The amount of hits Isaac needs to take before spawning a chest is random. Flight does not affect these spikes, and Isaac will still take damage. Damaging yourself will spawn chests, both locked and unlocked, after walking on the spikes. (This only applies on the way in, with the way back out always causing damage with or without flying upgrades.) If a secret room is next to the Curse room, a second spike door will be spawned allowing access between the two.Ĭontains nothing but a single spike floor tile. The heart cost can be bypassed with flying upgrades so long as Isaac does not touch the spikes on the sides of the doorway. Has either one or two red chests or, rarely, an item from the Devil Room, Angel Room or Secret Room. Items do not cost hearts to pick up.Ĭosts 1 heart total (Half a heart walking in, half a heart walking out) to enter and exit. two Chubs, two Peeps, two different Horsemen of the Apocalypse.) Beating this floor with a specific character unlocks their respective item and a Final Ending Cutscene.Īn alternative to the Devil Room, with an Angelic figure (Presumably God) sitting there instead of Satan. Every room before the New Final Boss are rooms with two bosses (I.E. It features angel-based monsters ( Holy Leech, Angelic Baby) and contains a New Final Boss.Īfter you finish The Cathedral while holding the Polaroid there is a new floor that starts out with four Golden Chests in the spawn room that always spawn an item.

With Cathedral-styled walls, Cathedral is the polar opposite of Sheol and is the other option of floor to go after defeating It Lives. Identical in appearance to The Womb, Utero is identified by different enemies, such as Mask + Hearts and Angelic Babies, and different boss types. It generally features harder versions of enemies from The Depths. Necropolis is an alternative form of The Depths. The Catacombs contain tougher enemies than the Caves, such as Keepers and B. The Catacombs replaces The Caves in a similar fashion to how The Cellar can replace The Basement. The Cellar's enemies/bosses are arguably harder than that of the Basement's, making it a challenge for newer players. Areas of webbing appear in the terrain which slow Isaac's movement and the speed of tears that pass through. The enemies differ from those appearing in the Basement, featuring an increase in the number of Spider-themed Enemies. The Cellar is an alternative version of The Basement which can randomly replace one or both Basement levels in a playthrough. What they are and their unlock requirements can be found on the Secrets page. What they are and their unlock requirements can be found on the Achievements page.ģ4 Secrets were added with the Wrath of the Lamb DLC. 47 achievements (originally 24) were added with the Wrath of the Lamb DLC.
