Grubs move around the room somewhat randomly until they line up with Isaac, after which they rapidly charge towards Isaac, similar to a Charger. Upon death, each of the Grub's segments will spawn a Maggot, Charger, or Spitty. Unlike Larry Jr. which requires each of its segments to be destroyed, as soon as one Grub segment is destroyed, the entire enemy will be destroyed.
- Prior to Booster Pack #5, if a Grub spawned in the Flooded Caves, it had a high chance to spawn Drowned Chargers instead of Chargers.
A grub with only its head section remaining, due to Midas' Touch.
- Because of its similar movement behavior and design to that of Larry Jr. (along with the fact that Grubs can spawn in a Larry Jr. boss room), Grubs are also known as "Larry Sr." by The Binding of Isaac community.
|Bug!||Attempting to capture a Grub with Friendly Ball will only capture one segment of the Grub.|
|The Binding of Isaac: Rebirth|
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