Well, after the brouhaha that Capcom caused by not making gamers able to delete their save games on Resident Evil: The Mercenaries 3D, it seems that Namco Bandai wants no part of that action!
I got an E-mail from their PR department happily declaring that despite some published reports, you actually can delete your save data for Pac-Man & Galaga Dimensions on the Nintendo 3DS. All you have to do is hold down A, B, X, Y, L, and R while booting up the game from the system's home screen.
See? No reason to hate on Namco Bandai this time around!