Months after the original Halo 2 E3 2003 demo was made available to the public, a second demo has surfaced online - but not from Microsoft.

The Halo 2 demo was first shown at E3 2003, and it blew audiences away with its realistic graphics and fluid combat. The demo took place in a futuristic city under attack by the Covenant ...

In the following demo, members of the Center for Internet Safety and Forensic Education and Research placed a laptop which was sending out ICMP packets inside one classroom and used HaLo to sniff ...

With a runtime just under nine minutes, the demo was a vertical slice created to introduce the Covenant's invasion of Earth and showcase features that would go on to make Halo 2 one of the most ...