Guitar Hero II

There are 8 outfits to unlock. Each cost $2000.
Just try to get 4 stars or more on medium or better. If you have a memory card as well as a hard drive. Don't spend any cash. Keep on collecting until you have $25,000 and more. Create a copy to your memory card. Use the first save to buy the characters. Save and the achievement will unlock. Quit out of the game and replace the new save with the old save. Go to the shop again and buy the guitars and the finishes at the same time. Save and unlock both achievements. You do not need to buy any guitar that you have to unlock. Quit out of the game and replace the new save with the old save. Go to the shop again and buy the outfits. Save and the achievement will unlock. Quit out of the game and replace the new save with the old save. Go to the shop again and buy the songs. Save and the achievement will unlock.

Again for this, following this guide will not only net you this cheevo but it will get you all of the shop related achievements. This method in the video can be used for easy money.