Rock Revolution for Nintendo DS

Poor Man's Guitar Hero

Basically, if you like Rock Band and Guitar Hero, you'll probably like this because it's pretty much a full out clone. If it wasn't for the covers (though some are originals) I'd give a higher rating, but at this stage in the rhythm game niche there really isn't much excuse to not have original masters.

All that said, Rock Revolution makes very good use of the touch screen which I much prefer to Rock Band's silly clip-on accessory. Worth a shot if you can get it cheaply!