Blocks

Obstacles

Rocks

Poops

Fire Places

Cobwebs

TNT

Spikes

Blocks

Buttons

Dirt Patches

Teleporters

Metal Blocks

• Blocks movement and projectiles.
• An explosion's blast radius will not extend past it.
• Cannot be destroyed or removed.
• Can only be destroyed by walking over while Mega Mush is active.
• Can be re-rolled by the D12 into a destructible obstacle.
• Can only be moved over via flying or jumping.

Key Blocks

• Acts like Metal Blocks.
• Requires a key to unlock.
• Cannot be flown over.
• Small chance to drop a random pickup when unlocked.
• Can be destroyed with a bomb explosion if Broken Padlock is held.
• Can be destroyed without consuming a key by walking over while Mega Mush is active.

Pillars

• Blocks movement and projectiles like a regular block.
• Cannot be flown over, nor can flying enemies or familiars fly over it.
• Can hide pickups, buttons with beneficial effects (such as opening paths), or enemies behind them.

The Binding of Isaac: Rebirth
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