ARCADE GAME SERIES: GALAGA

This achievement will unlock immediately after you beat level 29. You don't need to do anything once you get there you just need to reach the level.

Tips to make the game easier:
Before the game starts you can go into Settings then Game Settings and change your maximum amount of lives from 3 to 5. You can also turn on select level. This will allow you to choose any level that you have reached. I would also recommend holding down the button instead of pressing the button because it shoots faster.

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I would like to point out that there's a cheat where the enemies won't ever shoot at you until you lose all your lives and get a game over. But if you use the save method with the enemies not shooting you method it makes this a joke instead of the enemies shooting at you instead they'll try and crash into you and that's it. Just make sure to save as much as possible by saving and quitting and then close out the game and re open the game again and you'll create a save checkpoint now if you die just delete your save through the console and you'll be back at your last checkpoint you saved and the enemies still wont shoot you.

basically what you need to do is save the 2 enemies all the way on the left side of the screen and kill all the other enemies and once those 2 enemies that were on the left side of the screen that keep shooting at you will eventually stop shooting at you after a couple of minutes and once both of those 2 enemies aren't shooting at you anymore then save your game and your good to go.

Here's the link on how to do the no hostile shooting cheat


HOW TO SAVE AND GET UNLIMITED CHECKPOINTS METHOD

To “back up” a new checkpoint.
1) Go online if you are offline.
2) Save and quit.
3) Quit the game (hit xbox button, then menu/hamburger button and select quit)
4) Wait a while for it to synch up to the cloud (I would give it 10 to 15 minutes).
5) Load the game.
6) Go offline (OPTIONAL- If you are sharing your content via swapping home xboxes, you should still be able to play for a certain amount of time even offline, as long as you launch it first. Since the levels in the arcade collection are all pretty short, you should either be at the point where you are ready to go online again in just a few minutes.)
7) Continue to play

To restore your checkpoint
1) Make sure you're connected online and click the Xbox button then menu/hamburger and select manage game.
2) Go to the saved data for your gamertag and hit A, then select “DELETE FROM CONSOLE”. DO NOT SELECT “DELETE EVERYWHERE”.
3) Load the game and after the launch screens it will sync your save from the cloud and you can resume where you left off.