Hiro and Raven duel on their motorcycles, just like jousters, but Raven still makes it to the amphitheater before Hiro can stop him.
The assembled hackers in the amphitheater think that Hiro (who they all know or know of) has put together some awesome motorcycle stunt for Da5id's benefit show.
Raven deposits the bomb, which begins to open. They fight some more, and Hiro decapitates Raven's avatar; the crowd goes wild.
Hiro opens SnowScan, that piece of software he wrote while on the escape raft.
The light show from the egg-shaped bomb is amazing. It finishes with projections of four women carrying scrolls, scrolls so large that they block out the sky.
The scrolls open. They contain a phrase that Hiro wrote, telling the audience that if this were a virus, they'd be dead by now. Since the Metaverse is so dangerous, everyone should work on their security, and hey, they can call Hiro Protagonist Security Associates for a free initial consultation.