|Open your enemies|
Sharp Key is an active item.
- Grants 5 keys.
- Consumes a key and allows it to be thrown, damaging enemies.
- Sharp Key is not affected by picking up a Golden Key. It will still cost one key to throw and cannot be used once the key counter reaches 0.
- Cricket's Body: Sharp Key splits into 4 smaller ones, which each has an identical effect but with less damage.
- Homing Tears: Sharp Key homes on enemies.
- Ipecac: Sharp Key explodes on impact with obstacles, enemies, or walls.
- Rubber Cement: Sharp Key can bounce off walls and enemies, overriding its piercing effect.
- Spectral Tears: Sharp Key can pass through obstacles, but will no longer destroy them.
- Tiny Planet: Sharp Key orbits around Isaac.
- Sharp Key can be used to open locked doors and golden chests.
- If the key passes through multiple golden chests, they will all be opened without consuming additional keys.