Here is the full list of all 51 Guitar Hero: Smash Hits trophies - there are 38 bronze, 10 silver, 2 gold and 1 platinum.
Score 2,000,000 points on the song Free Bird as a Band.
Hit all Open Strum notes in the song Laid To Rest as the Bassist.
Complete the song YYZ with 5 stars on Expert Bass.
Complete single player Expert Career on all instruments.
Win 50 online matches.
Complete all four instrument careers on any difficulty.
Complete the Career as the Drummer.
Get a 100 note streak in the song Through The Fire and Flames on Hard or Higher as the Drummer.
Get 100% on a song as a Band (4 players).
Complete a song with all Band members on Expert (4 player Band).
Complete the Career as the Vocalist.
Score 95% or more on the song Killer Queen as the Vocalist (Expert).
Play 20 online matches.
Complete the Career in a Band (2-4 players).
Play 150 songs throughout your entire Career.
Complete the Career as the Bassist.
Win a Band vs. Band match (8 players).
Win an online Face-Off match by 25,000 points or more.
Win an online Face-Off match.
Complete the Career as the Guitarist.
Win an online Pro Face-Off match by 25,000 points or more.
Win an online Pro Face-Off match.
Complete a song in every venue.
Play a song in the Atlantis venue.
Score the highest individual score in a 4 players Band.
Trigger Star Power simultaneously (4 player Band).
Complete a song in a Band (4 players).
Complete a song on Expert + (Drums only).
Complete the Career Tutorial.
Complete 100% on any song on Expert in single player.
Perform as the Drummer.
Complete the song Smoke On The Water as a Vocalist.
Recover from a poor performance.
Perform as the Vocalist.
Create a new custom Band logo.
Download a song from GHTunes(SM).
Create a new custom rocker.
Create a new custom instrument.
Create a custom tattoo.
Fail a song with available Star Power in single player.
Score 5 stars in a song on Expert with Lars Umlaut in single player.
Win a song with the rock meter in red.
Perform as the Bassist.
Perform as the Guitarist.
Complete a song with any instrument on any difficulty in local Quickplay or Career.
Earn all of the Bronze, Silver and Gold Trophies.
Complete the song Through The Fire and Flames with 4 stars or more as the Guitarist on Expert.
Complete the song Raining Blood with 5 stars as the Drummer on Expert+.
Perfectly play the Lets Play section in the song Play With Me as a lead Guitarist on Expert.
Perfectly play the First Blood section of the song Raining Blood as the Guitarist on Expert.
Get 5 stars on the song Beast And The Harlot Expert Drums without using Star Power.