Mega Blast

### Collection Grid

*(page 4, column 16, row 4)**(page 4, column 16, row 4)**(page 4, column 17, row 4)*

### Unlock Method

 Defeat Mega Satan as every character ( except Tainted characters)

**Mega Blast** is an unlockable activated item added in *The Binding of Isaac: Afterbirth*.

## Effects

* Upon use, Isaac fires a giant, incredibly powerful blood laser, similar to the one used by Mega Satan, for 15 seconds.
	+ The beam deals Isaac's current damage multiplied by 5 per tick.
	+ The beam has enough power to push Isaac backward while being fired and will last between rooms, and across multiple floors.
	+ The beam has spectral and piercing effects.
	+ The beam can be moved while firing in many angles diagonally.
	+ While Mega Blast is being fired, Isaac cannot:
		- Open Chests.
		- Pick up a Lil' Battery, collectibles, pills, trinkets, or cards or runes.
		- Pick up the trophy or enter the chest that spawns after defeating a final boss.
		- Sleep in a bed.
	+ The laser extinguishes fires, detonates TNT, and destroys poop.

## Notes

* Picking up a Lil' Battery with this item will add 3 to its charge, meaning that 4 batteries are required to fully recharge the item.
	+ A Charged Key will only add 3 charges.
		- Lil' Battery and Charged Key add 6 charges instead of 3.
	+ Picking up a Mega Battery will fully charge it twice.
* Using a 48 Hour Energy pill with this item will fully charge it.
* Mega Blast has an 80% decreased item pool weight, making it less likely to appear than other collectibles.
* To unlock Mega Blast, Mega Satan must be defeated with all 13 characters.
	+ Requires defeating Mega Satan as all 15 characters (Now including Apollyon and  The Forgotten).
		- Requires defeating Mega Satan as all 17 non-tainted characters. (Now including  Bethany and  Jacob and Esau)
* It is not recommended to use Mega Blast in fight with  The Beast, because its beam forces you into obstacles on the level.
	+ This can be mitigated to a degree with , especially with a  which doubles the Anima Sola's length. The Beast won't be able to spawn obstacles while chained.

## Synergies

All synergies and interactions pertaining to  pertain to Mega Blast, with the following exceptions and additions:

* : Item will gain charges for dealing damage, which is especially effective when fighting bosses with large health pool.
	+ : Spawns red wisps on the middle ring that utilize a miniature Brimstone as their weapon, which requires charging and releasing as usual. Lasers can hit up to 8 times for a total of 24 damage. If Mega Blast is being used, the wisps will continuously fire their laser outward rather than in the direction Mega Blast is firing
* : Enemies hit by the sneeze will gain a curse that increases the damage the beam deals to 10x and +3 flat damage (instead of just 5x). Enemies who die to the beam under the curse will damage and spread the curse to nearby enemies. The sneeze can be activated while Mega Blast is firing.
* : Beam will continue to fire when switching to another active item. Other active items can be used while the beam is firing.

## Interactions

Familiars which copy Isaac's tears fire normal tears while Mega Blast is in use.

* : The beam does not split.
* : No effect.
* : No effect.
* / : Only grants 3 charges.

## Trivia

* Mega Blast's collectible sprite is called 'Mega Satan's Breath' in the game files, which may be its initial name.

## Gallery

* The notification after unlocking Mega Blast.