Namco has said that Pac-Man & Galaga Dimensions save data can be deleted by holding ABXYLR on the 3DS.
Earlier this week, the game's QA lead had suggested game save data was permanent and couldn't be erased. "There is no way to erase the save from within the game itself without misusing the hardware, causing corruption," ShackNews was told.
Namco has now apologised for any confusion caused by the "miscommunication", Edge reports.
Capcom recently caused quite a stir with its decision to utilise a permanent save file system in Resident Evil: The Mercenaries 3D - so much so that it's unlikely to repeat the strategy with other games.