If a character is assigned a value of 0, he/she/it will not appear in the Arcade mode. A character can be assigned an order value from 0 to 10. More dangerous characters, such as boss characters, should be assigned higher orders, but it is up to the user to use his discretion and decide where the character should be placed. When installed, every character can be assigned an order, which is usually determined by how powerful/overpowered/cheap the character is. However, since M.U.G.E.N has gone from being a game engine to being an impromptu 'Everything vs Everything' game, this system is also used to create a difficulty curve in Arcade mode or to keep cheap characters out of the early stages of Arcade mode (or to omit them entirely). This system was initially designed to support the level system in fighting games, where regular characters are fought for several levels before a boss is fought. M.U.G.E.N, being a game engine at heart, contains support for an order system that tells the engine what kind of characters should be fought in what sequence in Arcade mode.
