Term describing cartridges for the Neo Geo arcade system. Stands for Multi Video System. The term is actually part of the name of the arcade system: the Neo Geo Multi Video System (See Neo Geo MVS). Although they contain the same “guts” (rom chips and such), they are not compatible with the home system (different car pinouts). They manufacturer did this to prevent arcade operators from buying the then cheaper home carts (MVS carts debut in the $500-$1200+ range, home carts in the $180-$300 range).