Repentance · Locks & switches

Key Block

A locked floor block that normally consumes one key when opened.

How to recognize it

A square block with a keyhole.

Interaction and possible rewards

Key to open

Opening it costs one key and clears the tile; a pickup can appear.
Flight does not let you pass over it.
Broken Padlock allows bombs to break it; Mega Mush can crush it without paying a key.

Each ordinary block can use a key needed for a Treasure Room or door.

Count the blocks in the path and protect the keys your next destination requires.

Possible drops and useful interactions. The item guide explains its role.