- Fixed a bug to crash unconditionally when Delirium's HP was below 40%.
- Increased The Fallen, Ultra Pride, Ultra Pride Baby's HP that Mega Satan 2 spawns.
- Changed Mega Satan 2's HP doesn't go below 50% until he uses the summoning pattern.

- Hush's blood laser pattern slightly changed.
- Hush's continum projectile(HP 50% Below, from eye) falling speed decreased.
- Ultra Greed's shockwave(fist) pattern slightly changed.
- Fixed a bug where Mega Satan 2 continues to use punch attack without spawning anything.

- When Delirium was transformed into Hush, it modified so as not to spawn blood vessels and hands.
- Delirium's polaroid spawn probability increased.
- Delirium's some pattern reorganized(big downing blood laser, spore projectile).
- Fixed a problem where Beamwave did not work properly.
- Hush's Hand's bug fixed.
- Fixed a problem where there was no ready action in the Phase 1 Isaac and ???'s new patterns.

- When Delirium exists and Lamb's body is to die, then Lamb's body is to destroy.

- Fixed a bug It lives did not spawn exploding projectile when using stomp pattern.
- Satan now uses again both hands blood laser attack in hardmode.
- The Lamb's some pattern enhanced.
- When Delirium now dies, no more Memories spawns.

- Fixed for the game being crashes when fighting Hush.
- When Hush now dies, no more Hush Spider spawns.
- Mom's shockwave stomp attack difficulty decreased.

- 3Phase ???(Alt)'s cross arrangement tear pattern difficulty increased.
- Mom's shockwave range changed.
- Hush's many patterns has been reorganized.
- Hush's Spider's moving speed has been decreased.
- Delirium's phase change interval increased.
- 5Phase Delirium's trapdoor spawning number decreased.
- Memories1~2's design changed.
- Ultra Greed's new pattern added.
- Ultra Greed's some pattern enhanced.
- Hush's Bloodvessel's spider spawning speed decreased.

- Fixed a bug where Mod does not work.
- 3 Phase Isaac's split tear moving speed and falling speed decreased.

- Bug fixes.
- Mom's shockwave range increased.
- Delirium's phase change interval increased.