Orbit © 1978 Atari

No hay codigo para iniciales en Orbit:

 

ORBIT
• The initials “LR” (for Lyle Rains), “OR” (for Owen Rubin), “Ly” (for ?), “Mh” (for Morgan Hoff), and “PM” (for Paul Mancuso?) can be found in the program, coded as graphics. According to programmer Owen Rubin, it’s quite possible these can be triggered to appear on the screen!

https://www.arcade-history.com/?n=&page=detail&id=1890

Present in the same graphics ROM as the object graphics, these initials (L.R., O.R., L.Y., M.H., and P.M.) are those of people who worked at Atari's early arcade days:

Lyle Rains
Owen Rubin
(unknown who L.Y. is)
Morgan Hoff
Paul Mancuso

According to Rubin, the initials would be displayed if a special sequence was entered on the game's number pad. Unfortunately, close examination of the game's code reveals that this sequence is no longer present. Given that Atari had a thing against crediting their game programmers/designers/etc., it's very possible they discovered the code and removed it rather than erase the initials, figuring that there would be absolutely no other way consumers would be able to see these.