Dreamcap
Dreamcaps are red, supposedly layered Capnap-like creatures that appear in Mario & Luigi: Dream Team. Like a handful of enemies, Dreamcaps do not appear on the field, requiring Mario and Dreamy Luigi to enter battle with a Dreamcap Captain or Propellion in order to battle Dreamcaps.
In battle, Dreamcaps and Dreamcap Captains battle together in hordes. If the player defeats all the Dreamcap Captains in the Dreamcap group, the Dreamcaps will huddle together and one will run away with each turn. If all Dreamcaps are defeated and any Dreamcap Captains are left standing, they will summon several more Dreamcaps to then be able to attack. They may attack from the background, charging towards Mario in rows, which Mario must jump over or on to in order to avoid the attack. The group may also just charge towards Mario as a pack, whom Mario must move out of the way, jump over or on to in order to avoid the attack.
A stronger version of Dreamcaps called Dreamcap Rs appear later on in the game. Additionally, Dreamcaps sustain critical damage from the Luiginary Flame Luiginary Attack.