Cartridge? is a trinket in Eclipsed, a mod for The Binding of Isaac.

Allows specific familiars to be used as an extra life upon death. When this happens, both the trinket and the familiar are removed from Isaac's inventory.

The familiar to be sacrificed is the first one that was obtained and it will blink periodically if Isaac is left with one heart or less.

The trinket is destroyed once triggered and leaves behind an Eternal Heart.

Familiars that can be sacrificed:
• Brother Bobby.
• Acid Baby.
• Headless Baby.
• Harlequin Baby.
• Sister Maggy.
• Little Steven.
• Rotten Baby.
• Mongo Baby.
• Abel.
• Boiled Baby.
• Buddy in a Box.
• Cube Baby.
• Demon Baby.
• Dry Baby.
• Farting Baby.
• Freezer Baby.
• Ghost Baby.
• Guardian Angel.
• Incubus.
• King Baby.
• Lil Abaddon.
• Lil Brimstone.
• Lil Loki.
• Multidimensional Baby.
• Rainbow Baby.
• Robo-Baby.
• Robo-Baby 2.0.
• Seraphim.
• Sworn Protector.
• Twisted Pair.

The following special synergies and interactions for Cartridge? have been documented.

* Note that not all possible synergies and interactions are listed here.

• Download Eclipsed from the Steam Workshop.