8 to 12 players are thrown into an arena. In this arena is one (or numerous) large monster (boss monster obviously). The task of the knights is to work together to defeat the monster as quickly as possible. Each monster has 5 stages when the monster loses enough HP it will go to the next stage. As it goes through stages it will gain more power to it's hits, damage resistance, and more status resistance (on the last stage it is completely immune).
If the knights can defeat the monster before the clock runs out everyone gains krogmo coins. The top damaging player gets an extra coin.