There are three kinds of online quests: event, arena, gigantic monster. Each of these will be available for a limited time, but run on a rotating schedule so you won’t miss out if you buy Monster Hunter Tri in, say, the summer.
Here’s a little bit about each of them.
Up to four players can band together online to complete the Event Quests. The Event Quests offer a variety of challenges on an ongoing basis, cycling monsters of varying difficulty. Aspiring hunters must meet the required hunter rank in order to participate in these quests or work to level up their characters by hunting monsters in either the single player mode or standard online multiplayer mode and attempt to participate when the desired post launch quest appears again. Specialized weapons, including three designed by Capcom’s community members, can only be obtained by participating in Event Quests.
Gigantic Monster Quests
Gigantic Monster Quests, a distinctive event quest, are only available for one day at a time. Pitting players up against the rare and challenging Jhen Mohran, gigantic monster quests find players on a ship as they battle the massive beast, firing cannons to draw the monster close before attacking at closer range with their customized weapons.
Arena Quests pit two players against solitary monsters in varied coliseums. Hunters work together to take down the specific massive beasts in either a traditional Monster Hunter style or in a time attack style, offering a higher chance of acquiring value rewards based on how quickly the monster is defeated.
See the screenshots? Those are from one of Monster Hunter Tri’s arena quests.