Wikipedia
ALL.Net
ALL.Net (Amusement Linkage Live Network) is an arcade video game network communication system and digital distribution system made by Sega Corporation. It is similar to the Taito NESiCAxLive game distribution systems and NESYS arcade network; the player smart card system is similar to the Konami e-AMUSEMENT system. The ALL.Net service consists of over 60 games mainly from Sega and Bandai Namco.