A huge fight ensues between pretty much all of OASIS and the Sixers, plus all the giant robots still battling it out.
Shoto faces off against Sorrento in Mechagodzilla, saying he "owe[s] this son of a b**** some payback" (35.25). We're not sure how destroying someone's video game robot will avenge an actual, real-life death, but whatever makes him feel better.
Unfortunately, Sorrento vaporizes him and blows apart Parzival's robot in the process.
Parzival still has the Beta Capsule, though, and transforms into Ultraman.
With an Ultraman Ultra-Slice, he cleaves Mechagodzilla in half. Sorrento ejects, but Parzival blasts him out of the air with a laser, and kills his avatar.
After transforming back into Parzival, he enters Castle Anorak. With a little help from his friends, Art3mis and Aech, he unlocks the Third Gate.
As they step inside a sound "like the entire universe […] cracking in half" (35.74) goes off, and they all die. Game over, man! Game over!