This achievement can be done on any difficulty, easy included, so if you arent that great you can still shread to 100k on lower difficulties just manage to hold streaks and star power when necessary. Can be done on almost any song on medium difficulty or above.

K_Dog's Picks:

War Pigs - Easy and Above
Heart Shapped Box - Medium and Above
Sweet Child O' Mine - Easy

This achievement is a little more tasking than the 100k, easier on medium up but still capable on easy, 100% on easy songs such as Monkey Wrench, Strutter, Madhouse, etc... will probably get you this achievement if your playing on easy, again, keep combos and star power.

K_Dog's Picks:

Freebird - Easy/Medium
Monkey Wrench - Hard

Best if done on Hard or Expert, this can be challengeing, it requires concentration, good combos, and correct star power locations. Getting a bit more difficult as most would only be able to do this on Expert.

K_Dog's Picks:

Killing in the Name - Expert
Monkey Wrench - Expert
X-Stream - Expert
Freebird - Hard (If you're Decent)
Heart Shaped Box - Expert (have to be at (99%) * thanks to cybenddragon

Do this one on expert folks, SOOOOO much less work. Some good songs to do this in are: Monkey Wrench, Beast and the Harlot, Freebird, and X-Stream, X-Stream being the easiest.

K_Dog's Picks:

Killing in the Name - Expert
Monkey Wrench - Expert
Freebird - Expert

Ok, this is where i start telling you to try ALOT, this one is challenging, probably the hardest achievement in the game. There are only 2 songs i know of that this is possible. X-Stream, and Freebird. I have done both, X-Stream is WAY EASIER, but you need to 100% it. It will take a couple of playthroughs before you figure out where to use your star power to maximize your score. To 100% this song you need to master the 3 cord switches such as G-R-B to R-Y-O to Y-B-O and so on. With time and dedication you will join the VIP.

K_Dog's Picks
This is where you're put to the test. I'm only going to list songs that it's possible on:

Killing in the Name - Expert
Freebird - Expert
Fall of Pangea - Expert
X-Stream - Expert

Unlocked after finishing the first tier of songs in Career Mode.

Unlocked after finishing the second tier of songs in Career Mode.

Unlocked after finishing the third tier of songs in Career Mode.

Unlocked after finishing the fourth tier of songs in Career Mode.

Unlocked after finishing the fifth tier of songs in Career Mode.

Unlocked after finishing the sixth tier of songs in Career Mode.

Unlocked after finishing the final tier of songs in Career Mode. Not available in Easy.

This cam be acomplished on every song on any difficulty.

K_Dog's Pick:
Heart Shaped Box - Easy

"Sounds tough but if you play the same song as the above all the way through, you'll get this as well.

K_Dog's Pick:
Heart Shaped Box - Easy

Get a 1000 note streak, "MUST BE DONE IN ONE SONG!!!" So how do i do this you ask? Well 100% Monkey Wrench on Expert (1037 notes) or X-Stream (1337 Notes). USE YOUR HAMMER ONS AND PULL OFFS. I CANT STRESS THAT ENOUGH. HINT HINT HINT HINT For Hammer-Ons and Pull-Offs, the tutorial claims you must hold down the other frets ex: to hammer on red you must hold down green. WELL GUESS WHAT..............THEY LIE!!!!!!!!, just press the button like you normally would. How do i Distinguish which notes i can hammer on or pull off?, IF your like me, you have been playing long enough to just judge distances, if not, the hammeronable notes have no black line around the white top. Good Luck!!

K_Dog's Pick:
Once again, sounds tough, but fortunately we have a winner:

Freebird - Medium

Finish Career Mode on Easy Difficulty. Only three frets are in use, easy. Complete every song.

Finish Career Mode on Medium Difficulty. Four frets here.

Finish Career Mode on Hard Difficulty. Uh oh, u gotta stretch for that orange one, (tip, shift and stretch) what do i mean by that? Learn to shift your hand positions around rather than just stretching the pinky.

Finish Career Mode on Expert Difficulty. Not as hard as it sounds, just use the hammer-ons/pull-offs, keep those combos goin, practice your cord switches, etc.... you will get this in no time, or more like 48 songs time!

5 star every song on easy tour, not including bonus tracks. This isnt difficult at all, you should have not trouble with this, even new comers will be able to do this once they get a feel for the game. See http://www.scorehero.com for 5* cut off charts.

5 star every song on medium tour, not including bonus tracks, This isnt too bad, once you get a feel for the songs and master the blue fret, you shouldnt have a problem. See http://www.scorehero.com for 5* cut off charts.

5 star every song on hard tour, not including bonus tracks, Mastering the orange fret can be challenging, just practice shifting and stretching, once you got that down, 5 stars will come naturally. See http://www.scorehero.com for 5* cut off charts. Prepare to be challenged and master when to hit the star powers for more points!

Ok this is difficult, for you at least. To do this you need to master EVERYTHING. A suggestion would be get familiar with the song, like know the rhythm and have an understanding of the layout before attempting this achievement

These are listed in the "Tutorials" section of the main menu. If you pay attention, some of you that are new to the game might learn a few things as it covers basics of notes, chords, hammer-on's, and pull-offs

Done on any song. This is done once you have built up enough star power. After you reach a x4 multiplier, you activate your star power by either pressing select or tilting the guitar back. The later is the preferred method of the most metal heads. m/

Fairly easy on any song on Easy difficulty. Use the first tier of songs as they are the simplest out the lot.

This is done in "Career" mode. After playing the initial set list, you will be prompted to play an Encore. Refuse that bad boy for an achievement.

This is harder than it sounds as the game won't even let you "traditionally" fail the song until 50% of the way through. After than, just strum until you're boo'd off the stage. Way to suck!!

Easy for those of you who are leftys. But for the rest of us, this setting is under your player options. Once done, I recommend you play on easy.

Practice mode is under "Tutorials" on the main menu. I assure you, if you plan on getting better (Or if you plan on beating Jordan on expert), you'll be using this more than just 3 times.

These are both bonus songs and this can be done on Easy difficulty. The songs first have to be purchased from the store in Career Mode.

Practice mode. That's all I can say. This song combines corkey sounds with odd note progression. If you can play on expert, the song is fairly simple until the solo. The solo is an insane shred that literally does NOT stop. The best advice I can give is A) Practice mode to learn the off beat progression of the solo, and B) Aquire as much Star Power as possible before the solo and save it until you ABSOLUTELY need it.

It has been confirmed that you do NOT have to purchase the Unlockable guitars to get this achievement.

The finishes are only for Regular guitars and the finishes only appear for the guitars you own so you have to purchase all of the regular guitars first before you can get their respective finishes.

The songs are located in the Shop and can be bought from the initial start of the game.

Same as the songs, can be purchased initial, pending you have the cash.

Outfit can only be purchased for the default characters so this is the same as the songs, you can buy them initially.

The Credits can be viewed under the "Options" on the main menu. Trust me when I say it's one hell of a dragged out achievement. Start them and do something constructive for twenty mins.

Self explanitory, this is easily spent while purchasing anything for the other achievements. Cash is awarded to you in Career mode for playing gigs on various difficulties. Your reward is based on your quality of performance.

After purchasing all the songs, you are awarded this for completing all the songs.

Simple as, 100 notes in Co-op, any song, easy difficulty.

Same as 100 notes co-op, any song, easy/medium difficulty.

Tough and requires the patience of a saint and a good friend. Most of the higher tiered songs on medium are a good shout.

Both activate your star power at the same time when you have a 4x mulitplyer on, then WHAM, Achievement Unlocked!!!

The Co-Op achievements are a bit more difficult as you not only have to worry about yourself, but someone else as well. I recommend doing this on any song on easy with a bass line.

Two Players getting at least 90% notes on Freebird on Medium difficulty can aquire this achievement. Along with 400K

Ideal Songs:
Killing in the Name - Expert
Freebird - Medium
Heart Shaped Box - Expert

Ideal Songs:
Freebird - Hard/Expert
Killing in the Name - Expert
Jessica: Hard/Expert
Fall of Pangea - Hard/Expert
One for the Road - Expert
X-Stream - Hard/Expert

Get 800,000 points on a song in Cooperative

Wow, pushing it aren't we? I'm now only going to list songs it's possible on:

Killing in the Name - Both players on Expert getting 100%
Jessica - Both Players on Expert
Institutionalized - Both Players on Expert. Lead guitar must hit 97% and Rythym guitar must hit 100%
Freebird - Hard/Expert. If on hard 100% from both players. Expert has more oxygen room.

Get 1,000,000 points on a song in Cooperative

Ok, this is only possible on 2 songs:

Jessica - This has only been done by 4 different players each hitting 100% and 99% notes respectively. Both playing on Expert achieving a score of 1,067,045. The video of the accomplishment can be found below:

Freebird - The more realistic of the two, many players have scored 1 million on this song but it requires two players playing on Expert hitting at least 97% of the notes.