Upon activation, Isaac will raise Tammy's head in the air, and it will fire 10 large tears in a circle around him, damaging enemies within range.
- The tears will have all attributes of Isaac's normal tears like speed, size, damage and special effects (like petrification poison, homing etc).
- Tears do not turn into Brimstone lasers, Technology lasers, Mom's Knives, or Dr. Fetus bombs or any other tear-changing item.
- When used with Wiggle Worm, instead of shooting in eight directions, it fires 2-4 shots per direction in the four cardinal directions.
- Tammy's Head is named after one of Edmund McMillen's cats.