Summary: This is not a game. It doesn't mean it can't be fun, but there is a distinction to be made here. I bought this when I was 17 and did not have much passion for writing music so I really got little value from it but others might appreciate it more. I typically play rhythm games (Rock Band, Guitar Hero, DDR, Elite Beat Agents, etc) or other miscellaneous games. The DS is limited in that its size/shape is not quite right ergonomically for this type of program.
Summary: I didn't see a comparison review between this game and its sequel. Naturally I first opted for the sequel, because of the obvious added improvements. But JS2 was uncomfortable to play, no matter how much I adjusted my wrist, or the way I strummed the touch pad. Later on, I learned that the added improvements were not worth it, since the controls are very uncomfortable I thought that maybe if I played it long enough, I could get used to it, but I didn't even want to get...
Summary: Don't expect Guitar Hero out of this software. It is not a "game" It is a guitar software piece. The D-pad acts as a chord selector and your strum to play that chord. It is open ended and you can play any song you can think of that uses straight chords, sorry no picking individual strings. I would love to see someone take full advantage of the software by hooking their DS up to an amp and playing a little show with it.
Summary: I bought this game just to kick back and have some fun with no agenda, it does that just fine, but my ONE complaint is that there arnt enough songs and no link for more songs to play on free play.
Summary: Before I start, I just want to say one thing: IF YOU HAVE LITTLE INTEREST IN MUSIC/GUITAR THIS ISN'T FOR YOU. This isn't really a game and isn't for hardcore gamers. But its still an awesome piece software, and for those who like music like me, this may be a favorite. The rundown: Pros: Sounds just like a real guitar. You can record up to about 10 min. of music. You can choose from over a hundred of chords to play.
Summary: I'm an amateur musician on my good days, but my music has always been synth and electronics-based. Despite all my attempts, I have never really been able to play guitar. I can play a chord here and there or figure out a riff or two, but putting everything together and making an actual song has always been a challenge I've been unable to overcome. I picked up Jam Sessions with the intention of adding a guitar sound to my music that sounds somewhat authentic.
Conclusion: Alot of people have gotten confused thinking this was guitar hero for the DS or a cheap version of it. IT IS NOT! It is actually a portable acoustic guitar. I myself as a guitar player have found this amazing, the chords (notes) are 100% accurate and there are loads to choose from. All you need are notes from a website and you can play a song using the free play section or invent your own song.