Third time's the charm in the video. Basically, you have to work fast and infuriate Chewbacca before takeoff:
The basics of Chewy Mode is to trigger Chewy yelling at you during your entire flight. No Hondo. No cannisters. Just you flying and chewy yelling at you. But there are some things you have to do in order to make this happen. Like a cheat code on the NES.
Don’t read this if you haven’t watched the video yet though because I think it’s funner if you go in not really knowing. Here’s how to trigger Chewy mode:
First and foremost, do not ACTIVATE your position right away like you normally do. Left and right pilots need to push their controls to the extreme left/right or extreme up/down. Once you’ve done that, hit your activation button.
Engineers and Gunners need to hit one of the white buttons on their console before hitting the orange activation button. Kind of like using the shift key on a keyboard.
Finally, be sure you’ve done this BEFORE the cast members finishes checking your seatbelts (pull the yellow thingy) and he hits his ok to go button.
And that’s it. Do it right and chewy will be yelling at you for 5 minutes.