Hyper-dimensional monsters are monsters unbound by space and time, created by the universe in order to hunt down sentient beings too unbalanced in certain aspects.
Scientifically speaking, they do not actually exist. They are however a great threat to those they hunt.
The Hyper-Predator - hunting Niko
The Hyper-Butcher - hunting Lusk
The Hyper-Slaver - hunting Radam
The Hyper-Torturer - hunting Phil
The Hyper-Observer - hunting Mika
The Hyper-Parasite - hunting Deaval