Def Jam Rapstar

For this, you must simply complete all of the High Score challenges in the career. High Score challenges require simply obtaining the highest score you can. 5 Mic scores are not required, but you WILL need to earn 5 Mics if going for the "Microphone Fiend!" achievement. There are 2 High Score Challenges in the game. The first is Ice Cube's "It Was A Good Day" in Stage 1, and the second is Outkast's "So Fresh, So Clean" in Stage 5. Complete both, and the achievement unlocks at the summary screen of the second one completed.