Mega Mush is an active item.
- Gigantifies Isaac for a short duration. This effect persists across rooms.
- While giant, Isaac gains the following effects:
- This item allows Isaac to crush metal blocks and tall blocks, which cannot be destroyed by any other means.
- While giant, Isaac cannot use any active items.
- While active, Mega Mush will not be recharged by clearing rooms, while other active items gain charges normally.
- Doors of Challenge Rooms, Mini-Boss Rooms, and Boss Rooms cannot be busted through. Locked doors still need keys to be opened.
- Can randomly drop from exploded Mushroom blocks even before the unlock.
- This item is a reference to the Mega Mushroom from the Mario franchise.
2LDG 19LN (First floor secret room)