Spikes

Obstacles

Rocks

Poops

Fire Places

Cobwebs

TNT

Spikes

Blocks

Buttons

Dirt Patches

Teleporters

This article is about the floor-based spike hazards. For the spiked, ball-like hazards, see Spikeball. For the active, enemy-like hazards, see Poky.

• Can be walked over, but will damage Isaac in the process.
• Deal one heart of damage upon contact with the player (unless the player has Callus, Orphan Socks, the ability to jump, or flight to avoid being damaged). Non-flying enemies take 8 points of damage.
  • Sacrifice room spikes will damage Isaac and enemies even with flight ability.
• They can be deactivated with silver buttons.
• Will Retract if Isaac holds Flat File, even if they're sacrifice room spikes.

Retractable Spikes

• Retract and extend on timers.
• Can be walked over safely while they are retracted.
• Deactivates when all silver buttons are pressed.

Gallery

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  Sketches of monsters for the Binding of Isaac: Rebirth, including the Retractable Spikes in the bottom square of the fourth row, formerly called "On/Off Tiles." Despite technically being an obstacle, the concept art groups it with monsters.