Pulse Worm is a trinket added to The Binding of Isaac: Rebirth. It is a white medium-sized worm with some large and some short parts.
- Makes Isaac's tears "pulse" from small to big, and big to small.
- A pulse worm is used for fishing, at the end there is a fishhook and the rest of the pulse worm is almost similar to the one in-game. Unlike in the game, this worm's size does not change. It just moves constantly to attract the attention of the fish.