From the hardcover edition's back cover:
Monster Coliseum details dozens of creatures for RuneQuest II, placing them in the exciting backdrop of the arenas and amphitheatres where gladiators and fearsome beasts do battle for sport and glory.
Each creature features notes on how it fights along with its preferred combat styles and manouvres.
The coliseum itself is also explored with notes on structure, personnel and special events: chariot races through to pitched battles.
No longer are creatures simply there as sword fodder or a series of numbers. Monster Coliseum brings life and death to your RQII campaign!