There are two kinds of Lobby in this game once is the default practice where all your characters are stored. You can play around with your new characters here without them fighting back or you can join an open Open Space Lobby where you can practice against real people or just meet up with friends chill with.
Open Lobby 01
Open Lobby 02
You won't be bored if you love these type of games because it features a lot of game modes. Some of them are PowerStone where your team controls areas on the map, Deathmatch where everything goes crazy specially kill stealing, and Prisoner mode where you have to strip the enemy team of their clothes.
Power Stone Mode