Best Friend is an activated item.
- Spawns a decoy vaguely resembling Isaac in his crying animation, which explodes with the blast radius of a Megatroll Bomb after a few seconds, dealing 110 damage.
- The decoy explodes after 5 seconds, dealing 185 damage.
- The decoy bomb distracts enemies, as they will target the decoy instead of Isaac regardless of distance.
- All bomb modifier items will affect Best Friend, with the exception of Bobby-Bomb, Bomber Boy, Fast Bombs, and Mr. Mega.
- Scatter Bombs will create mini decoys.
- Book of Virtues: Creates wisps that are small Isaac heads with a white flame in the center ring. Tears shot by these have a 7.5% of applying the mark status effect, akin to Rotten Tomato.
- Car Battery: Spawns two decoys on top of each other.
- Edmund McMillen stated that Best Friend would no longer "Die upon touch". This is a reference to a bug in the original The Binding of Isaac where, in many circumstances, Isaac could take glitched hits (often killing Isaac outright).
PC XM8A ELC2 ( Treasure Room adjacent to spawn)
PC 6VNN HAK2 ( Treasure Room adjacent to spawn)
PC 0YRN 4TFJ ( Treasure Room adjacent to spawn)
PC LE7M GYRQ ( Treasure Room adjacent to spawn)
|Bug!||Gurgles, Splashers, Boils, Guts, and Sacks are immune to Best Friend's explosion.|
|Bug!||Switch Doubles when Multidimensional Baby passes through it.|
|Bug!||If Isaac has Brimstone Bombs and places down Best Friend, the brimstone lasers it creates can damage him.|