Mega Blast

12 rooms   Devil Room Devil Room   (page 4, column 16, line 4)   Defeat Mega Satan as every character

Mega Blast is a secret unlockable activated item added in 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 backwards while being fired, and will last between rooms, and across multiple floors.
  • While Mega Blast is being fired, Isaac cannot:
    • Open chests.
    • Pick up a Little Battery, collectibles, pills, trinkets, or cards or runes.
    • Pick up the trophy or enter the chest that spawns after defeating Isaac or ???.
    • Sleep in a bed.
  • The laser extinguishes fires, detonates TNT, and destroys poop.

Notes

• Picking up a Little Battery with this item will not fully charge it. Instead, it 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 as well.
• Using a 48 Hour Energy pill with this item will fully charge it.
• In order to unlock Mega Blast, Mega Satan must be defeated with all characters including secret characters (The Lost and Keeper).

Synergies

• Homing Tears: Beam curves toward nearby enemies.
• A Lump of Coal: Increases the damage of the laser the farther that it travels. Also colors the laser black and makes it wider as it travels.
• Rubber Cement: Beam bounces off walls like Brimstone would.
• Tiny Planet: Beam rotates around the player like Brimstone would.
• Void : When used to absorb Mega Blast it decreases the charge time to 6, halving the time to recharge.

Interactions

• My Reflection: Causes the beam to curve while moving.
• Proptosis: The beam does massively increased damage at close range but does nearly no damage from afar.
• Sharp Plug: Fully recharges the item upon use at the cost of 2 hearts.
• Car Battery: No effect.
• Void: Allows the item to be used every 6 rooms instead of 12 and batteries will fully charge the item.

Seeds

 PC  WCB1 YZ39 (First floor Devil Room)

 PC  TQWA 6TQD (Curse room adjacent to spawn, chest teleports to devil deal)

 PC  3KY4 LSVL (Second floor Devil Room)

 PC  RZL2 6MQ0 (Starting item as Eden, and will also start with Godhead)

 PC  MKNJ 711R (Third floor Devil Room)

 PC  W3BZ BBB2 (Starting item as Eden)

 PC  PGH7 BMRT (Starting item as Eden)

 PC  L6B9 ZZ22 (Starting item as Eden)

 PC  NZ7T 4RAJ (Starting item as Eden)

Gallery

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  The notification after unlocking Mega Blast.