This game has a hidden sound test.
Pac-Attack is about stacking ghosts together so Pac-Man can eat them up!
Extra Difficulty Level
A hidden difficulty level in Normal Mode can be activated by holding Right while "Hyper" is highlighted at the level select screen, then confirming the selection. The game will then begin with a starting level of 300 and a starting score of 0 points.
Entering the password SND brings up a sound test that has a row of hopping ghosts at the bottom of the screen.