Can you provide some more detail on the general gameplay loop?
The game has a so-called "hub" area, where players can choose their character, customize them and enter online multiplayer*. Online multiplayer supports up to 8 players. Upon concluding an online match, players then return to the hub, at which point they receive some sort of reward whether they win or lose. Using these rewards, players can further customize their character, and so the cycle continues.
Online matches are generally last player standing, however there are certain cases where victory conditions differ. For example, players may be tasked with teaming up to take down a powerful boss enemy, or find themselves in other special circumstances.