Ranged Monstro that specializes in ranged attacks such as shooting projectiles and are pretty resistant to projecrile attacks themselves. However they are weak to melee attacks.

Homing Monstro are usually able to levitate of fly as they group togwther and home in on their enemy. But while they can overwhelm most Denizens, Wave-Heroes can deal with them rather nicely.

Trap Monstro often uses the power of mimicry to blend in to their environment and attack they're foes when they won't see it coming. Although they may be fast and can easily kill you, most if not all denizens have the reflexes to counter attack

Shell Monstro are unusual as they float around neighboring Monstro and trasfer they're energy to heal its cohorts. But they aren't to threatening on they're own and can even be split open to reveal rather tasty nutrients to heal the user.

Bulky Monstro are gigantic and pose a real threat. Only good teamwork and skill is your best friend.

Prickly Monstro are a real threat as they appear to appear randomly and especially since they can just harm you by contact.

Counter Monstro bare an uncanny resemblance to denizens as they blend in but they show up whenever a denizen is too powerful to kill them.