Rocks

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Rocks.png

  • Blocks movement and projectiles unless the player has flight or spectral tears, respectively.
  • Can be destroyed with explosions and certain items like the Notched AxeNotched Axe, The NailThe Nail, LeoLeo, or Thunder ThighsThunder Thighs.
  • Can fill in a 1-block wide gap when pushed in the right direction by an explosion, or with one of the abilities that allows destruction by walking onto the rock.
    • Note: With these items, it is important to walk in the direction of the gap.
  • Small chance to reveal a Crawl SpaceCrawl Space when destroyed.
  • Destroying 100 rocks will unlock the Lucky RockLucky Rock trinket.

Tinted Rocks

Tinted Rocks Repentance.png

Sometimes referred to as "Marked Rocks", they are always marked with an "X", and in some levels slightly tinted/discolored. These rocks are much less noticeable in WombWomb, UteroUtero, and (except in Rebirth)Scarred WombScarred Womb due to them being the same color as the surrounding rocks, but can still be distinguished by the "X" on the bottom right. Only one tinted rock can spawn per room.

Found in: Every Stage

Tinted Rocks have a chance to spawn 1-3 of the following when destroyed:

Super Special Rocks (except in Rebirth and Afterbirth)

Repentance super special rocks.png

Super Special Rocks are Tinted Rock variants whose smaller marks and lack of discoloration make them much harder to spot. Super Special Rocks take two bombs to blow up and drop the contents of two Tinted Rocks, with the exception that a single chest or The Small RockThe Small Rock appear without extra rewards.

Only one super special rock can spawn per room, and normal tinted rocks cannot appear in the same room.

In Chapter 4 and Chapter 4.5, Super Special Rocks are almost identical to Tinted Rocks, making them easier to spot in these chapters.

Super Special Rocks are unlocked by the achievement 5 Nights at Mom's5 Nights at Mom's, which requires getting a 5-win streak, using a different character each time. (in Repentance and Repentance+) This number can be reduced to 3; see the Notes section of the Achievements page.

Bomb Rocks

Bomb Rock.png

Act like rocks.

Found in: Small chance of replacing any rock on any chapter. Some room layouts have predetermined bomb rocks. They are like regular rocks, but explode when destroyed.

  • (except in Repentance+) Destroying a bomb rock next to a hole does not create a bridge.
    • (in Repentance+) Destroying a bomb rock next to a hole can create bridges.

Spiked Rocks (in Repentance and Repentance+)

Spiked Rock.png

Spiked Rocks are variants of normal rocks which hurt Isaac on contact, even if he's flying.
They can fill in a 1-block wide gap like ordinary rocks, but the spikes will remain and Isaac will take damage as he steps on them. If they are located in a room with Pressure Plate.pngPressure Plates, after all the plates are pressed, the spikes will retract into the interiors of the rock. If a Crawl Space is generated with the same rock used to fill a gap, the bridge will not be spiked.

Flat FileFlat File will remove the spikes from the rocks.

If spiked rocks are crushed by being StompyStompy, having LeoLeo or Thunder ThighsThunder Thighs, or using The NailThe Nail, they do not always deal damage, depending on Isaac's speed, size, and the angle they are touched from.

Found in: Every stage except for Chapter 6, ?????? and HomeHome. Additionally, some layouts of Curse RoomCurse Rooms, Super Secret RoomSuper Secret Rooms, and Boss RushBoss Rush have spiked rocks.

Notes

  • If a Spiked Rock is used to fill in a gap, stepping on the created spiked path will deal a full heart of damage. This damage is considered self-damage (it will not affect Angel/Devil Deal chances and items such as Paschal CandlePaschal Candle). Touching Spiked Rocks, however, will not count as self-damage.

Fool's Gold Rocks (in Repentance and Repentance+)

Fool's Gold Rocks 2.png

Act like rocks. They have a small chance of replacing normal rocks, sometimes in small clusters, once unlocked.

Fool's Gold Rocks will spawn the following when destroyed:

Urns

Urns.png

Act like rocks.

Found in:

When urns are destroyed, the following events can occur:

  • Nothing (68.00%)
  • One random coin spawns (4.84%)
  • Two random coins spawn (4.84%)
  • Swallowed PennySwallowed Penny spawns (2.50%)
  • A QuarterA Quarter spawns (0.50%)
  • One spider spawns (9.67%)
  • Two spiders spawn (9.67%)

Notes

  • If spiders spawn from destroying an urn after clearing a room, they will disappear if Isaac leaves and re-enters the room.

Mushrooms

Mushrooms.png

Found in:

When mushrooms are destroyed, the following events can occur:

  • Nothing (68.00%)
  • One Pill spawns (9.67%)
  • Liberty CapLiberty Cap spawns (2.50%)
  • Magic MushroomMagic Mushroom spawns (0.33%) / Mini MushMini Mush spawns (0.25%)
    • Only one of each collectible will drop per run. However, it is possible to get both collectibles in the same run.
    • (in Repentance and Repentance+)There is a 2.72% chance for a mushroom in a Secret Room to drop Wavy CapWavy Cap instead of a Magic Mushroom or Mini Mush. Only one will drop per run.
  • One poisonous gas effect spawns (19.33%)
    • This effect knocks Isaac back and deals half a heart of damage. (It does not count as an explosion.)

Skulls

Skull.png

Act like rocks.

Found in:

When skulls are destroyed, the following events can occur:

  • Nothing (68.00%)
  • One random card / rune spawns (9.67%)
  • One Black Heart.pngBlack Heart spawns (2.50%)
  • Dry BabyDry Baby / Ghost BabyGhost Baby spawns (0.25% chance each)
    • Only one of each collectible will drop per run. However, it is possible to get both collectibles in the same run.
  • One Host.pngHost enemy spawns (19.33%)

Notes

Marked Skulls (in Repentance and Repentance+)

Tinted Skull.png

Act like rocks.

Once unlocked, a single skull marked with a small "x" will appear in DepthsDepths, NecropolisNecropolis, and Dank DepthsDank Depths II or XL. When destroyed, it will drop 0 - The Fool0 - The Fool.

Notes

  • Cannot be re-rolled by D12D12.
  • Marked Skulls may spawn in Red RoomRed Rooms on DepthsDepths, NecropolisNecropolis, and Dank DepthsDank Depths, even while not in the II or XL floor. They can also appear in Red Rooms in The VoidThe Void based on rooms from those floors.
  • Marked Skulls have different appearances when spawned on other floors, e.g. manually via the console or during the DELETE THIS challenge. Some of these are Cut Content from the original game.
    • For example, it will appear as a white urn in BasementBasement, as a red mushroom in CavesCaves, or a horizontally flipped polyp in WombWomb.
    • It will appear as a regular bucket in DrossDross with no visual difference.

Polyps

Polyps.png

Act like rocks.

Found in:

When polyps are destroyed, the following events can occur:

  • Nothing (68.00%)
  • Random heart spawns (9.67%)
  • Umbilical CordUmbilical Cord spawns (2.50%)
  • Blood ClotBlood Clot / PlacentaPlacenta spawns (0.25% chance each)
    • Only one of each collectible is encounterable per run. However, it is possible to get both collectibles in the same run.
  • A ring of 6 red projectiles and a puddle of red creep (19.33%)

When polyps in the (in Repentance and Repentance+)CorpseCorpse are destroyed, the following events can occur:

  • Nothing (68.00%)
  • (in Repentance and Repentance+) Rotten Heart.pngRotten Heart spawns (9.67%)
  • (except in Rebirth)Lil LarvaLil Larva spawns (2.50%)
  • Rotten BabyRotten Baby or Rotten MeatRotten Meat spawns (0.25% chance each)
    • Only one of each collectible is encounterable per run. However, it is possible to get both collectibles in the same run.
  • Launches 6 (in Repentance and Repentance+) Small Maggot.pngSmall Maggots in all directions and a puddle of green creep (19.33%)

Buckets (in Repentance and Repentance+)

Buckets.png

Act like rocks.

Found in:

When buckets in Downpour are destroyed, the following events can occur:

When buckets in Dross are destroyed, the following events can occur:

In addition to these rewards, whenever a full bucket (i.e. filled with water or filled with poop) is destroyed or picked up by a Polty.pngPolty, 6 projectiles will always spawn in a small radius.

Notes

  • If a bucket would normally spawn Striders, but is in a dry room, normal Spiders will spawn instead.

Notes

  • All item and trinket drops from rocks can only spawn once per run, and copies cannot spawn if Isaac has already previously collected the item/trinket on the run.

Unlockable Achievements

  • 5 Nights at Mom's
    (except in Rebirth and Afterbirth) 5 Nights at Mom's - Get a 5-win streak, using a different character each time ((in Repentance) this number can be reduced to 3, see the notes section).

Gallery

References