I bought this and its ok. Has some more mainstream tracks like No Doubt, Smash Mouth, Daughtry, Maroon 5, etc. Not made for big hands. I get cramps after a small time of playing. The buttons are smaller and the grip/hardware slips out easily if you move your hand too much. When that happens you have to turn of the DS and restart the game. This would be good for my m3 so i dont have to carry around another cartridge . Overall the game seems entertaining but limited. Might get bored after a bit.