Dig Dug Arrangement/Gameplay

Controls

 * Joystick: Use the 4-way joystick, to direct your Dig Dug (white for 1P, yellow for 2P) around each of the game's rounds; they can't dig through metal.
 * Button: Use the button to make your Dig Dug pump up the enemies until they explode; if caught on the pump of a Black Dig Dug, press it repeatedly to shake him off (you also have to do this if he, or the other Dig Dug in a two-player game, starts pumping you up to prevent yourself from exploding)
 * 1 or 2 Player Buttons: Push these buttons to begin the game as player 1 or player 2; in a two-player game, both players' scores shall be combined.

Dig Dugs
Dig Dug (Taizo Hori) is the protagonist of this game, but this time, there's two of him; Player 1 controls the original white-suited version of him on the left while Player 2 controls the new yellow-suited version of him on the right. A two-player game is semi-cooperative (like in the original Mario Bros.) - as both players will have to work together to kill all the enemies (of which there are seven new types), but one player can either pump the other one up to kill him for 10000 points, or drop a rock on him to crush him (in the case of the latter, the text of "Betrayer!" will appear on the screen). At the end of a round in a two-player game, the text "RESULT" will appear on the screen, with the number of enemies both players killed by pumping, rock-dropping, and Cosmo Ball-dropping (however, on many rounds, there are no Cosmo Balls, so for those rounds it will always be 0 for both players) below it; the amount of points that both players scored on the round will also be displayed below them, and the text "1P/2P Win!" will then appear at the bottom of the screen (depending on which player had got the higher score). Both Dig Dugs also get an extra life when their separate scores reach 50000 points.

Enemies
When you kill an Explosion Robot by blowing him up, all other enemies who happen to be in the vicinity of the blast will also be blown up for more points:

Rocks, Cosmo Balls and Containers
As in the original Dig Dug, if either player digs away the earth underneath a rock, it shall fall to the bottom of the shaft it was at the top of, crushing any enemies in its path on the way down (and either Dig Dug, if you or the other player could not get out of its way in time!); however, there are now also Big Rocks (which shall fall straight to the bottom of the screen, when loosened), Cosmo Balls (from Cosmo Gang: The Puzzle, which will roll in the direction the arrows on them are facing when loosened) and Containers (from both Cosmo Gang games, which will take the place of the Rocks from Round 31, the first on the Moon, onwards). Refer to the charts below to find out the amount points you will receive for the number of enemies you crush:

Cosmo Balls
However, if you're crushed by a rock you loosened yourself, the text "Poor Play!" will appear on the screen - regardless of how many enemies it crushes.