Unlocking Isaac as a Boss: A Comprehensive Guide to The Binding of Isaac’s Challenges
The Binding of Isaac is a game brimming with secrets and challenges, and one of the most intriguing aspects is the ability to face Isaac himself as a boss. This isn’t as straightforward as facing him in the Cathedral; instead, you’ll need to overcome several hurdles to unlock this unique confrontation. So, how exactly do you unlock Isaac as a boss? Let’s delve into the process.
To fight Isaac as a boss, you need to reach The Cathedral and beat Isaac himself as a boss. This is not a boss that you have to unlock, it is the final boss of The Cathedral level.
Frequently Asked Questions (FAQs) About Isaac’s Boss Battles and Unlocks
Here are 15 frequently asked questions that provide further insight into unlocking various bosses, characters, and other elements of The Binding of Isaac.
1. How Do You Unlock the Blue Baby Boss Fight?
To face Blue Baby, also known as ???, you’ll first need to defeat Isaac five times to unlock The Polaroid item. Once unlocked, you need to grab The Polaroid item after the Mom fight, then carry it all the way through to the golden chest found after beating Isaac in the Cathedral. Following that, you will enter The Chest level, and Blue Baby will be the final boss.
2. How Do You Get to the Witness Isaac?
The Witness is a final boss added in Antibirth, and it’s always located at the end of the Corpse level. However, when you first enter the boss room on Corpse II, the battle won’t immediately start. Instead, you’ll find four golden chests, each containing items, surrounding a large pit in the center of the room. After opening the chests, the battle will begin.
3. How Do You Unlock the Lamb Boss?
Unlocking The Lamb requires a few steps. First, you must defeat Satan (the boss of Sheol) five times to unlock The Negative. Then, on a subsequent run, take The Negative (dropped by Mom) and defeat Satan again. This time, you’ll be taken to the Dark Room, where The Lamb is the final boss. It’s important to note that the Dark Room often features multiple earlier bosses within a single room.
4. How Do You Unlock the Forgotten Character?
Unlocking The Forgotten is a multi-step process that requires you to be swift and strategic. Start a new run with any character and defeat the first floor’s boss within one minute. After that, clear Boss Rush. Successfully completing Boss Rush will reward you with the second part of the Broken Shovel, completing the item. Finally, a single Grave Room with a Dirt Patch will appear in the Dark Room. Use your shovel there.
5. What Do You Get for Killing Delirium?
Defeating Delirium in a daily challenge does count as a win; however, it won’t give you unique bonus points. Unlike other completion marks, beating Delirium won’t add a mark to the post-it note. Instead, the note will become tattered (with blood on Hard mode).
6. How Do You Unlock Apollyon?
Apollyon is a character added in The Binding of Isaac: Afterbirth †. You unlock Apollyon by defeating Mega Satan for the first time. Once you achieve that, Apollyon will become playable.
7. Who Developed the Antibirth Mod?
The Antibirth mod was created primarily by Kilburn, NotYourSagittarius, and LeatherIceCream, with music composed by Mudeth. Many of Antibirth’s features were officially integrated into The Binding of Isaac: Rebirth through its third DLC, The Binding of Isaac: Repentance. However, the fan-made expansion remains freely available.
8. What Does Boss Rush Provide?
Successfully completing Boss Rush rewards players with two valuable items: the Rock and Genesis. These items can significantly enhance your runs.
9. How Do You Exit the Mom Boss Room?
After defeating Mom, all boss doors in the arena will disappear, effectively trapping Isaac. To escape, you’ll need to use a teleport card, a Telepill, or an active item that allows you to teleport to another room. Without one of these, you will remain trapped.
10. How Do You Unlock Secret Rooms?
Secret Rooms are hidden areas located between normal rooms. To access them, you need to bomb a wall space that is adjacent to several normal rooms. Additionally, the Secret Room needs to be accessible from all sides; no pits or rocks should impede the entrance.
11. How Many Endings Are There?
The Binding of Isaac has a complex story with multiple endings. There are 16 endings in Rebirth. Afterbirth added two more endings, Afterbirth+ added another two, and finally, Repentance added an additional two endings, bringing the total to 22. These endings can be unlocked by defeating the boss at the end of chapters 3-6 and can be viewed in the ‘stats’ section of the menu.
12. How Do You Beat Mom Easily?
Mom can be quite challenging, but utilizing bombs can be very effective. In Repentance, bombs deal 100 damage and ignore her armor, with about 43 bombs being enough to defeat her. This is more doable with high heart counts.
13. What Happens if You Bomb the Mirror?
Bombing the mirror is possible but not recommended because it disconnects your access to the Mirrored World. Conversely, breaking the mirror while inside the Mirrored World prevents you from going back. Furthermore, Isaac will begin to fade and eventually take damage, so this should be avoided at all costs.
14. What Does the Leviathan Transformation Do?
Collecting three or more items with a dark and occultish theme will trigger the Leviathan transformation. This transformation grants Isaac flight and two black hearts, giving you a major boost in combat.
15. What is the easiest Character to Unlock?
Lazarus is considered one of the easiest characters to unlock. To unlock him, you will need to accumulate four Soul Hearts or Black Hearts. While this can take a bit of planning, it is generally straightforward, provided you keep an eye on your health.
Conclusion
Unlocking specific bosses, characters, and game modes in The Binding of Isaac often requires a combination of skill, strategy, and perseverance. From conquering Isaac himself in the Cathedral to facing the challenges in the Dark Room, each achievement adds a layer to the game’s already rich tapestry. Understanding how these unlocks function will undoubtedly help you to explore the depth of The Binding of Isaac to its fullest.