For some reason, so many of The Robot's interactions with HP items surmounts to just... gaining barely enough casings to buy a blank on the first floor, which is somehow supposed to make you feel better about getting an item out of a chest that is nearly completely useless.
This mod doesn't entirely overhaul HP items for the Robot, HOWEVER, all HP Up items will now give the Robot a piece of armour, similarly to how Master Rounds function.

Item Changes

The following items now give the Robot armour:

• Magic Sweet
• Pink Guon Stone
• Ring of Miserly Protection (see further below for additional effects)
• Monster Blood
• Heart Holster
• Heart Lunchbox
• Heart Locket
• Heart Bottle
• Heart Purse
• Heart of Ice
• Gun Soul
• Riddle of Lead
• Yellow Chamber (gives 2 armour pieces instead of 1)
• Super Meat Gun

The Ring of Miserly Protection has been made to work with Armour the same way it affects normal character's hearts. Collecting it grants 2 armour, but spending money or dropping it will remove 2 armour. If the player is only has 2 armour left, only 1 is taken upon drop/purchase, and if the player only has 1 armour left, dropping/purchasing has no penalty.

Shrine Changes

Peace Shrine
Sacrificing a gun to the Peace Shrine as the Robot now gives 1 armour.
Chance Shrine
If the player randomly rolls the 'Renewed' or 'Bolstered' effect, they are given 1-2 armour. (Whereas in vanilla those effects do nothing for the Robot).

Source Code

For other Modders: Github Link