Kratosaur

The Struggle Within Complete a song in a band in Quickplay or Career (4 players)

Master of Puppets Earn the highest individual score on a song in a band (4 player band)

Hero of the Day Complete a song on Expert + in Quickplay or Career (drums only)

Ride the Lightning All band members trigger star power simultaneously (4 player band)

Keep It Cool Achieve a 'cool' ranking on every line of a 'normal' length song

2 X 4 Earn a band Hot Streak (4 player band)

The Four Horsemen Complete a song with all band members on expert in Quickplay or Career (4 player band)

Enter Sandman Score 330,000 on the song Enter Sandman on guitar

Metal Militia 100% a song (4 player band)

Battery Score 1,000,000 on the song Battery as a band (4 players)

Super Performer Gold Score over 9000 on 5 different songs on Hard

Dyer's Eve Score 450,000 on the song Dyer's Eve as the drummer

A place where deals are made Defeat our resident guitarist! Achieve over 9744 on hard mode on any 'normal' length song

Pro Astro Admiral Get an Astro Admiral rank on all the levels in the Pro difficulty

Fight Fire with Fire Score 340,000 on the song Fight Fire with Fire as the bassist

X-TREME Continuum Captain Get a Continuum Captain rank or higher on all the levels in the X-TREME difficulty

All Challenges Completed Complete all the challenges in challenge mode

Creeping Death Score 575,000 on the song Creeping Death as the guitarist

Tough Astro Admiral Get an Astro Admiral rank on all the levels in the Tough difficulty

X-TREME Astro Admiral Get an Astro Admiral rank on all the levels in the X-TREME difficulty

Space Gardener Place the first Terraformer

Mastering Rapidium Start production of Phased Rapidium

Mix and match Start production of Proxylium

Wait, you can do that? Create the same Alter for a second time

Substance Genius Start production of Megafluid

Caring after all Complete all Scientist's Alters' storylines

The reason I stayed Finish the Last Variable DLC