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Galaga: Stop enemies from firing at you.
On the first level, wait until the enemy ships are in their proper formation. Shoot every last one except the one in the bottom-left corner. Now move your ship to the right corner. Let your enemy dive at you and go around until he doesn't fire during his pass. During the pass after not firing, shoot him down if he still isn't shooting in the next pass. If you do this correctly, the enemies in the rest of the levels will not fire at you for the rest of the game.
Contributed By: Turbo Speed.
Double Shot Galaga Zap
Start Galaga, and when the bad guys fly on screen press A... wait a tenth of a second, and then press R. You will fire out two Zap Rays instead of one. This is much more effective while moving instead of staying still. You can do this with the double fighter as well.
Contributed By: Mega.
Dig Dug Cheats
Make every enemy dissapear!
This glitch will make all enemies dissapear in the current level, but the level will not end. This let's you to get as many points as you want from eating all the dirt! 1) Get the game down to two Pookas. If you only leave one, it will escape thus ending the round. 2) This works best in horizontal tunnels under the rocks. 3) Get a Pooka to follow you, inflate as necessary to delay him a little. 4) Right when you are next to the rock, inflate the Pooka once to just delay him. When he moves at your character again, move under the rock. 5) Quickly turn around and start pumping the Pooka up. Using the delay of the rock dropping, you should be able to cause the Pooka to burst at the same time the rock drops on him. 6) If you are successful, then the other Pooka will disappear and you can amuse yourself digging out tunnels all day long in the dirt. NOTE: To return the game back to normal, drop another rock and you will go into the next round.
Contributed By: Apalapan.
In service mode, keep down the fire button and press Up six times, Right three times, Down four times, and Left eight times to see a hidden message
Stop Enemies from Firing
On most revisions of Galaga, there's a trick that stops enemies from firing at your ship. In Stage 1, kill all aliens except the two bees in the bottom-left corner. Allow the bees to dive down and shoot at you, while dodging their shots. After around 15 minutes or so, the bees will continue to drop down, but they won't fire. Let them drop down another 5 or 6 times, then kill them. After all this, enemies will not shoot at you for the rest of the game.
Contributed By: Colin.
Wait until one of the top ships(the green ones that take two shots to kill) comes down and fires off a tractor beam(the beam that can capture your ship). Let it capture your ship. Now, wait until it swoops down again with your ship behind it. Simply kill the head ship(the green one), and it will lose your ship. Your ship will then lock on to the side of your current ship, giving you two ships to play with at the same time! Now, be careful. Not only will both ships be firing at you after your ship gets captured, but if you accidently shoot your captured ship, you'll destroy it. Also note, this will cost you one life, but will definately make the Challenging Stages, and perhaps the game itself, a little easier to play.
Note: This works in all non-bootleg/hack versions of Galaga, as well as most of the sequels and Arranged Mode in Namco Classic Collection Vol. 1.
Contributed By: JosephLithius.
Invoke the System Check
When a game session is not active and the game is just running through the demo, at the exact moment that a Galaga releases its tractor beam to try and take up your ship, try to move the ship out of the way. If done correctly, you'll be able to control the ship for a short while - without even inserting a coin - until, eventually, the system check screen appears.
Contributed By: Eevee-Trainer.
Enter service mode, then quickly turn it off and on once so that an alignment grid appears on the screen, hold down both start buttons and toggle service mode on and off quickly again so that grid remains on the screen. Next move the stick up, left, down, and right four times each to make a hidden message appear onscreen.
Pac Man's parking space
At the beginning of every level/life, Pac-Man is just underneath a T-shape. The right-hand corner of that T is a parking space. If the ghosts aren't chasing you closely, you can pull into that space and the ghost will not find you. You can leave it sit for hours and they won't find you. It gives you a chance to grab a sandwich, take a bathroom break, etc.
Contributed By: Smaggy.
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