I've tried completing this 3 times now and was unable to because of a joining allies on the final boss platform.
Timer keeps ticking at 0:00 for firewall and when you take the portal, you get joining allies and it sends you to the second level.
Y'all owe me 5 godroll mints
-
Same here - final boss, finished 2nd phase, leave the majority of the ads alive behind you as you run through the portal to 3rd phase - as soon as you get through, the Joining Allies timer begins, 5s timer back to 2nd enc phase space. We managed to kill him constantly going through over and over, and that just closed the portal and left us stuck in 2nd enc. One person managed to survive dropping down to 1st phase space, and Joining Allies just took them back up to 2nd space, even though the allies had already backed out.