A new event stage, "Monster Colosseum," will be held for one week starting March 17th.

You can challenge it up to 10 times per day, and each time will require 2 stamina.

The Monster Colosseum is a stage where you battle boss monsters and challenge how far you can rank up.
Each time you win a battle, your opponent will become stronger.

If you win three or more times at the same rank, you will rank up, and a new monster of the next rank will appear the next day.
You can try again after ranking up, but you can only fight the same monster on that day.

In battle, you will fail if you cannot defeat the monster within the set number of turns.
Please note that you cannot continue.

Boost items can be used.
You can also bring in rental NPCs, but monsters will not drop items other than vouchers.
Please note that NPCs that increase item drop rates have no effect.

If you win a battle in the Monster Colosseum, you can obtain chips.
There are three types of chips: bronze, silver, and gold. Gold is the rarest.

The higher the rank, the tougher the monsters will be, but it will also be easier to obtain rare chips.
Win your way through the Colosseum and challenge powerful opponents of higher ranks!

You can exchange the chips you collect for special items at the "Event Chip Exchange" in your island's shops.
You can also exchange event chips for items even outside the event period.

The shop lineup will be renewed regularly in conjunction with the event. 
Check the number of days displayed on the Event Chip Exchange screen to see when it will be renewed.