I just loaded this up to check.
You can "interact" with the Q-bert, but your character just stands there and "plays" the game. If you do this, Dr Venkman will play the arcade game next to you. That game is called "Moonstrosity X" but the pinball game has such a low res texture that you can't read it. The best I can figure is the end of the title is "2 NES 8" or "2 2008" meaning the first word that is unreadable is a title and this game is a sequel to it.
Oh, btw, Ghostbusters on PS3 was distributed by Atari if that helps any.