Atari lawsuits are common
Atari has won quite a few judgments itself against t-shirt companies printing images of Asteroids and Centipede. More than one of these was won by default, because the other party didn’t show up, just like Atari in this case. They also submitted a lot of documents under seal, unlike the Feargal Mac case, which had some embarrassing letters to Fred Chesnais. Links to the docket here: https://notmyatari.com/lawsuits