Group

Group, referred to as VS. Mode in Super Smash Flash, is a multiplayer game mode in the  series and Fraymakers that allows players to engage in battles against other players or computer players under a different variety of settings. Before starting a match, players can set the rules for the matches, such as adjusting the amount of time, the number of stocks for each player, apply handicaps, modify the item frequency, etc. Players can also set the difficulty level for computer players or whether to play in free-for-all or team matches.

In Super Smash Flash
Due to Gregory McLeod's inexperience with Flash at the time and possibly due to space limitations as well, VS. Mode in Super Smash Flash features only one game mode, that being Melee mode. This is simply a standard fighting mode where up to two players can engage in battles together. They can also set computer players and adjust their difficulty levels and set the match rules at their preference, which can be accessed at the top of the character selection screen.

In Super Smash Flash 2
Group mode in Super Smash Flash 2 is further expanded to feature new game options. Aside the regular Smash mode (the successor to Melee mode), players can also select Special Smash, which allows them to apply different modifiers that will somehow affect the course of the match, such as changing the properties of characters or attacks, and Arena, which houses various competitive team minigames featuring the Sandbag, such as Sandbag Soccer and Sandbag Basketball. Players can also directly access the rules screen from this menu without having to enter the character selection screen.

In Fraymakers
Currently, Group mode in Fraymakers consists only of the standard fighting mode, which is accessed directly from the main menu. Players can also access various Match Options from the top of the character selection screen, including Match Modifiers, which act similarly to SSF2's Special Smash. Custom content, including characters, Assists, and stages, can also be freely accessed from this mode.