Hacker II is notably more difficult and involved than the first game. In Hacker II, the player is actually recruited based upon his (assumed) success with the activities in the original game. Once again, they are tasked with controlling a robot, this time to infiltrate a secure facility in order to retrieve documents known only as "The Doomsday Papers" from a well guarded vault to ensure the security of the United States.
There is no way in hell I have the time to push through all this, but it's absolutely fascinating and awesome to watch this successful playthrough. Very cool idea and elaborate execution.