Battle of the Bulge is a passive item in Daydream all Day, a mod for The Binding of Isaac.

Main Effect All special rooms turn into a Boss Room.

The additional Boss Room can be selected from any floor, but the boss' HP will be adjusted:

• Bosses existing on later floors get HP x 0.75 for each floor interval.
• Bosses existing on previous floors get HP x 1.3 for each floor interval.
• If the Boss Room is transferred from a Secret Room or a Super Secret Room, the boss gets HP x 2.
• If the Boss Room is transferred from a Treasure Room or a Shop, the boss gets HP x 0.5.

Rewards Transferred Boss Room reward will be an item pedestal cycling between the original item and an additional one from a certain item pool, depending on the room it transferred from.

• Normally, a Treasure Boss Rooms will offer an additional item from the Treasure Room item pool, and Secret/Super Secret Boss Rooms will offer an item from the Secret Room item pool, etc.
• Arcade Boss Rooms will offer an additional item from the Crane Game item pool.
• Challenge Boss Rooms will offer an additional item from Boss item pool.
• Sacrifice Boss Rooms will offer an additional item from Red Chest item pool.
• Bedroom Boss Rooms will offer an additional item from Mom's Chest item pool.
• Vault Boss Rooms will offer an additional item from Golden Chest item pool.
• Dice Boss Rooms will offer an additional item from Old Chest item pool.

Note Isaac is not forced to clear the transferred Boss Room.

Does not transfer rooms that do not exist on the minimap (e.g. Black Market, Devil Room, and Angel room).

Special Red Rooms created by Red Key or Cracked Key can also be transferred.

Battle of the Bulge can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Battle of the Bulge have been documented.

* Note that not all possible synergies and interactions are listed here.

• Download Daydream all Day from the Steam Workshop.