Green Day Rock Band

You can get this easily just playing casually with 3 other people. You all have to use Overdrive at the same time, but you do not all need to have a personal X4 (or X6) multiplier going for your respective instruments in order for this to work.

That being said, if you have a lonely friends list and all of the instruments yourself, you can just boost it alone. Turn on all your instruments and sign yourself in to whichever instrument is your favorite (why not). Remember to turn the "No Fail" option ON. Then play a song that is a little longer than usual. "Jesus of Suburbia" will give you more than enough time to do this. Now play each instrument 1 at a time until you have Overdrive built up in them all. Activate drums and vocals first (they will almost always be able to activate at the same time) and then tilt your two guitars.

Voila! The achievement will unlock at the end of the song. You may feel silly doing it like this, but if you're not much of a socialite, it may be the only way. Have fun!

To get an 8x band multiplier, you just need a 4 person band and deploy overdrive simultaneously because each person that deploys adds 2x towards the multiplier.

play what ever song it is with 4 people and all you have to do is turn on star power at the same time or different times but make sure the other players still have there star power on and you will get the achiewvment by the multiplayer number at the top of your screen sayin x8 with all 4 players having it on and at the end of the song you will get it

play what ever song it is with 4 people and all you have to do is turn on star power at the same time or different times but make sure the other players still have there star power on and you will get the achiewvment by the multiplayer number at the top of your screen sayin x8 with all 4 players having it on and at the end of the song you will get it

If you're like me and don't have friends who are good enough at this game (lol) to help you out, you can get this achievement on your own. Be warned, it can get tricky though so buckle up. DONT FORGET TO TURN ON NO FAIL AS THE INSTRUMENTS WONT BE PLAYED AT THE SAME TIME.

Connect all of your controllers (2 guitars, drum kit, mic) to your 360 and play either Jesus of Suburbia or Homecoming, all instruments on easy mode. What you're going to do now is start playing as one instrument (I started with guitar) and keep building the overdrive bar up until it's full. Do not set off overdrive yet! Now, choose which instrument next. Play on every instrument throughout the song until all overdrive bars are filled. I find it was easier to wait until the drums could have overdrive set off as drum overdrive isn't at the click of a button. I would also wait until an instrumental break to be sure you can set off vocal overdrive. Finish the song and the achievement will pop up!