Item: How to Jump

Spawns six troll bombs around the room.

Allows Isaac to re-roll collectible items in the current room into other items, depending on the current room's Item Pool.

Rerolls all of Isaac's items.

Upon use, turns the character into a into a Pac-Man-like creature for 5 seconds, granting invulnerability, inflicting fear on all enemies, and replenishing half a red heart container for every two enemies killed.

Transforms Isaac into another random character.

Upon activation, Isaac gains a black heart.

Throws a persistent flame that deals high damage and diminishes as it damages enemies or blocks shots.

Upon activation, grants homing tears for the current room.

Throws a short-range boomerang which does a bit of damage and has a high chance to stun the enemy for 2 seconds. Can also be used to grab pickups.

Kills all enemies in the room, then kills Isaac three seconds later.

Fires a laser from Isaac's mouth.

Shoots 10 tears in a circle around Isaac, which retain the damage, shot speed, and special effects (such as poison) of Isaac's tears.

For 1 coin, damages all enemies in the room.

Opens all doors in the current room when activated, including doors which require a key to open and entrances to secret rooms. Opens the big doors in the first room of both The Chest and the Dark Room.

Upon use, petrifies all enemies in the current room for approximately 4 seconds.

When used, has a 50% chance to drop one random type of coin (penny, nickel, or dime).

When used, places an explosive TNT barrel that can be pushed and used to destroy rocks or damage enemies. If used a second time in the same room while the previous TNT barrel is still intact, it will remotely explode the TNT.

Rerolls all pickups in the current room.

Teleports you to a random room on the level.

Summons a controllable ghost that can perform various tasks depending on what it targets.