Boss Item+: Stronger Boss Room Pool

Finally beat Champion Red Mega Maw after a grueling battle, and you’re rewarded with…!

Wooden Spoon: +0.3 Speed up.
Yippee.

Have the stat-up items from the Boss Room item pool felt lacking? Even the quality 3 items like Screw feel underwhelming. Shouldn’t the treasure for a tough fight be a little more… rewarding? At least, that’s how it feels to me.

This mod aims to expand the Boss Room item pool with various powerful stat-up items that feel like a proper reward for defeating a boss. All items added can spawn in both the normal and greed mode boss item pools.

Includes built-in EID support for all items.

List of Items:

Quality 3 Items

Mutant Blood
+0.3 Damage Up
Heals all Red Health when entering a new floor
Contributes to the "Spun" Transformation

Lemon Injection
+0.8 Tears Up
+0.2 Damage Up
+0.25 Shot Speed Up
Contributes to the "Spun" Transformation

Black Tar
+1 Black Heart
+0.8 Damage Up
-0.15 Speed Down
Contributes to the "Spun" Transformation

Benign Tumor
+2 Heart Containers
Heals 2 Red Hearts
+0.75 Tears
+1 Range
+0.3 Shot Speed

Philosophers’ Stone
+0.4 Damage Up
Spawns a Golden Key and a Golden Bomb

Mom’s Shampoo
+0.5 Damage Up
+0.75 Tears Up
+0.2 Shot Speed Up
Contributes to the "Yes Mother?!" Transformation

Rotten Egg
+0.5 Damage Up
+2.5 Range Up
-0.1 Shot Speed Down
Increases Tear Size
Grants Spectral Tears

Quality 4 Items

Star Candy
+1 Heart Container
Heals 1 Red Heart
+2 Damage Up
+0.4 Tears Up
+0.25 Shot Speed Up
+0.3 Speed Up
+1.5 Range Up
+2 Luck Up
Recharges all held Active Items on Pickup

Treasure Trove
+1 Soul Heart
+0.2 Damage Up
+0.2 Tears Up
+0.5 Range Up
+0.1 Speed Up
+0.5 Luck Up
Spawns 12 Random Pickups – One is guaranteed to be a golden pickup
Spawns 2-5 Random Chests
Spawns 3 Pills, 2 Cards and 1 Rune

Crumpled Sketch
+2 Empty Heart Containers
+3 Luck Up
+0.2 Fire Rate every time you enter a new floor
Spawns a Soul of Isaac

Credits
Spritework – lambchop_is_ok, totoro_uou, Umbra
Coding – Umbra
Isaacscript and Support – Zamiel