[ENA] Black Friday is an unlockable challenge in ENA Mod, a mod for The Binding of Isaac.

Schoolbag
Keeper's Box
Everything Jar

Note: this list does not include characters' default starting items.

Most pickups and items have shop prices.
Chests and Grab Bags turn into flies.

Based on the rules set in the .xml file, the following special rooms are disabled during this challenge:

The following is unlocked for completing the [ENA] Black Friday challenge: Job Certificate

Open up the hidden Red Door in the Home level as ENA.

• Download ENA Mod from the Steam Workshop.