The Binding of Isaac Afterbirth Plus Final Boss - Delirium + Ending

[Spoilers]

*This boss has recently been updated to have it's own animation*
*The original description below is outdated and is no longer accurate*

This is the final boss of The Binding of Isaac Afterbirth Plus DLC expansion pack, alongside showcasing the final ending. To access the final boss of the afterbirth expansion, one must defeat the Hush. After that, they will unlock the new final area of the game, the void. To access the void, you must go to Sheol after defeating the Heart.

I found Delirium to be very difficult, much more than the Hush anyways. He has an insane amount of HP. I was very lucky with the amount of hearts that were spawning during the fight. The fight seems to be an amalgamation of several previous bosses combined with your traditional bullet hell. Overall, very interesting boss and ending!

Edit: Apparently there are other ways to access the void. I'm not familiar with those methods, I only know the one I did above. Seems like you can directly enter the void after defeating hush and it doesn't have to be with Apollyon.

My attempt to fight Delirium as the lost
https://www.youtube.com/watch?v=iH-Z-nRNKGs

Видео The Binding of Isaac Afterbirth Plus Final Boss - Delirium + Ending канала PurpleSquirrelPie