I just tried out this game. It's your standard jigsaw puzzle game, with the following menu options on startup:
Jigsaw Puzzle -> choose from 100 different pictures
Challenge Mode -> seems to choose a puzzle at random and give you a ranking based on time
Gallery -> view the pictures that you completed in Jigsaw Puzzle mode, with background/year/artist information
Options -> to turn off the gay annoying music, and some other option which i didn't bother to figure out.
The actual game itself is not very interesting. You hold the stylus sideways and you move around pieces (you don't have to rotate them), and if placed correctly it 'snaps' in and you can't move it again. Like most crappy computer jigsaw games, you can take a random piece and if you correctly place it in the middle even with no adjoining pieces to hint that it should be there, it'll snap in anyway.
The game isn't that great, the options appear minimal and bare, and i doubt there is much to be excited in unlockable content beyond the 100 puzzles you begin with. For good time-wasting puzzlers i'd recommend Picross or PikiPiku over this.