One of the early "built for online play" Sega games. The arcade cabinet for this was also online supporting, and it came with a built in microphone so you could cuss out your opponents! This one has a lot of room for optimization, there seem to be some kill boxes you can lure the AIs into, and special weapon drops are random and some are way better than others.

Part of the Gotta Run Em All Arcade series - Game #333

Start Humans (Name Entered) - 01:30 End Humans (Tokyo Stage Complete Appears) - 09:26 Total Humans - 7:56

Start Aliens (Name Entered) - 09:56 End Aliens (Tokyo Stage Complete Appears) - 18:25 Total Aliens - 8:29