Enter ONECRUSHME as your password and you'll receive 594,000,000 and 27 balls.
In the Passwords screen enter THECRUSHL and then you'll receive 999,999,900 points, and you will also be able to see the end of the game.
Entering A+B+C+Start at the same time at any point in between the Sega Logo and the Title Screen will open a secret options menu that allows you to reconfigure the control configuration, choose between two ball speeds, and to access a sound test for sound FX and the remarkable BGMs.
Enter the following code at the Password screen....
OMAKEBGM?
Fill in the ? with a number 0 - 4 to select track
Then when you play the game that song will always be the BGM
Enter at password screen.
Immediatley after you release the ball hold up the right flipper. The ball will automatically go up to the top screen.
This also works for Devils Crash (MD)
To start playing the game normally but with 7 balls instead of the usual amount of 2, enter the rather obvious password ''DEVILCRASH'', the original japanese name of the game.