Namco Museum Hints for PlayStation 2
When playing Dig Dug or Dig Dug Arrangement pump enemies before going under a rock so when you drop the rock you can be sure it lands on them.
When you play Galaga or Galaga Arrangement let your fighter get caught.Then use your other fighter to shoot the ship that has your fighter.You will get a double fighter.This is helpful in the challenging stage.
To "bring down the house," have the house meter filled and hold L1, R1,L2, and R2 at the same time. Then press the alley-oop button (triangle). After that it should show snap shots of the dunk. Finnaly the player should run away from the hoop(automatic).
This works in most of the games except pole position and pole position collections.
At the games menu (like galaga) hit the triangle button and it adds credits.
It dosent do anything but make a cool noise and add credits (which dont do anything) but its kind of a fun cheat.