The following monsters get new items in Maplestory 2
Event monsters summoned around:
Every day from 10:00 AM to 10:00 PM UTC, every hour in channels 1 and 8, monsters is going to be summoned. The following monsters is going to be summoned in Henesys, Leafre, Haven, and Chu Chu Island:
Party Punk Admin Balloon
When you register monsters from MapleStory 2 Mesos the Event page with the Monster Collection, you will have the following rewards:
Mysterious Monster Egg: Randomly registers a monster as part of your Monster Collection, or when you’re lucky, you’ll receive one MS 2 Mesos Large Exploration Box instead.