All monipulators have a size, denoted by their Species Form icons. Some forms within a single species have varying sizes, such as Adamantoise (MON) and Pygmy Adamantoise (MON). A monipulator's size determines the areas it can enter.
Small monipulators have no border around their Species Form icons.
Medium monipulators are currently only unable to enter Bostaunieux Oubliette. They can enter all other areas.
Medium monipulators have a white border around their Species Form icons.
Large monipulators face strict area restrictions not imposed on other monipulators. Generally speaking, large monipulators cannot enter dungeons. Additionally, large monipulators cannot enter the field areas Valkurm Dunes, Qufim Island, or Behemoth's Dominion.
Large monipulators have a blue border around their Species Form icons.