I finished off Episode 2 of Penny Arcade Adventures today, and it ended with a rather…different kind of robot fight. I wasn’t sure what to do at first since it seemed like nothing I did would work, but it was just a matter of getting the right combination of things.
Completing it opened up Insane Mode, but I’m not about to play through it again right away. I completed pretty much everything possible for a first run through anyway, and got most of the Steam achievements, including this one: