The Binding of Isaac: Rebirth

The Binding of Isaac: Rebirth

79 Achievements

1,520

680-1000h

Xbox One
Xbox Series
Log in or Register to track The Binding of Isaac: Rebirth achievements progress.
Boss Rush

Boss Rush

Beat the Boss Rush.

20

21.75%

How to unlock the Boss Rush achievement in The Binding of Isaac: Rebirth - Definitive Guide

*This Achievement Should no longer be glitched if you've beaten boss Rush before the patch just start a new run and your achievement will unlock*

Time for the guide.

To get to Boss Rush, You must defeat mom in under 20 minuets. When you do that a hole in the wall will appear, go inside it. You will see 4 items always random; when you pick one up the boss rush begins. The boss rush has every boss you can fight in the game up-til the mom fight. once you beat the last boss,another Item will drop and you have beaten the Boss Rush Congratulations.

I recommend using azazel as he starts out flying and does the most damage at the start of the game. you also just have to play fast, just find the Item room and fight the boss. It's all luck of the draw on what items you get, you just have to have luck. The best Item to have is the or stopwatch (unlocks after donating 999 coins to shop) as it slows down enemies in every room; Making it easier to clear rooms fast.
7
0

24 Jul 2015 07:44

10 Comments
Yup, definitely glitched.
0
0
By Awoo on 24 Jul 2015 14:11
Neither the broken stopwatch or the regular stopwatch slows down the timer. They only affect enemies and their bullets.
0
0
By Ramon99108 on 24 Jul 2015 21:20
He never claimed otherwise. The Broken Stopwatch is an AWFUL item for this though, as it also has a chance to speed up all enemies in a room. I had a run to the Hard Boss Rush with The Lost once where the entire boss rush army was sped up significantly, and while I somehow almost beat it, it was absolutely ridiculous.
0
0
By Awoo on 24 Jul 2015 21:26
Ramon99108 Solution has been edited, I must have been thinking of a different game that slows down the timer when you get a stopwatch.
0
0
By SuperSonicDelux on 24 Jul 2015 21:28
That is fine, just trying to help out new players to the game.
0
0
By Ramon99108 on 25 Jul 2015 02:23
By far the hardest pair (for me at least) is The Bloat + The Mask of Infamy. The Bloat can snipe you from offscreen and The Mask of Infamy can come flying out of nowhere.
0
0
By The9thChevron on 26 Jul 2015 09:00
Yes, Bloat killed many of my Lost runs on Steam for that exact reason :P
0
0
By Awoo on 26 Jul 2015 15:54
I stumbled upon the boss rush yesterday with azazil. Had about 8 hearts barely survived it and was like what there is no achievement for this!?!??? Turns out it's glitched. Hopefully it pops eventually
0
0
By Dreadful Dad on 26 Jul 2015 15:56
I can confirm this and The Womb is glitched as I recently completed both and got nothing :x
0
0
By Jayowski on 05 Aug 2015 10:31
They are both glitched, but the Womb achievement is still capable of being unlocked. You just need to do "The Mind" achievement. Do that and you will unlock both. Sadly, all we can do for this achievement is wait for a patch.
0
0
By KEYMAKER99 on 09 Aug 2015 23:46
View all 10 comments Show less comments

The door to Boss Rush only opens if you beat Mom in 20 minutes or less, try to get the treasure room and go straight to the boss on every floor. Use bombs on doors to bypass a room if you think it will take a long time to clear. Once you enter Boss Rush there will be four random Items to choose from. Picking up an item will cause the other three to disappear and start the Boss Rush. 

The Boss Rush consists of 15 waves with two bosses per wave. The next wave does not spawn until both bosses from the previous wave have been killed, and any lingering Monsters from previous waves will not prevent the next wave from spawning. Completing the Boss Rush will also reward one more item.

0
0