▾Table of Contents▾
Mega Blast item
Mega Blast is an unlockable active item in The Binding of Isaac, added in the Afterbirth DLC.
Description
Fires a giant Brimstone laser for 15 seconds that persists between rooms and floors.
The beam deals 5x Isaac's damage 15 times per second.
The beam pushes Isaac backward while active.
The beam can be rotated with the shooting buttons.
While the beam is active, Isaac cannot open chests, pick up batteries, items, pills, trinkets or cards/runes, finish the run, or sleep in a bed.
Note
This page shows information as of the latest Repentance release.
To see latest up-to date information about this item for the new Repentance+ (Online Co-op) DLC, check this page instead.
How to unlock?
Defeat Mega Satan as every character, excluding Tainted characters.
Item pools
Mega Blast can be found in the following item pools:
| Name | Weight |
|---|---|
| Devil Room |
0.2/1.0
|
| Greed Devil Room |
0.2/1.0
|
Tags
The following tags are applied to this item:
| Id | Description |
|---|---|
| offensive | Can appear for  Tainted Lost. |
Special synergies
The following special synergies and interactions for Mega Blast have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Book of Virtues | Spawns red wisps in the middle ring that shoot a miniature Brimstone laser which requires charging and releasing. Lasers can hit enemies up to 8 times for a total of 20 damage. Wisps will continuously fire their laser outward while Mega Blast is active. |
* Note that not all possible synergies and interactions are listed here.
External links
- Check out the item description on the external Isaac Wiki.
Binky 
Mom's Box 
Kidney Stone 
Dark Prince's Crown 
Apple! 
Lead Pencil