Worth the buy
The soundtrack in the background is a difference, with some popular songs by Gwen Stefanie and the Black Eyed Peas. However, I find that it does not fit into the game very well, since the focus is on the gameplay, and there is barely time or space to enjoy the songs. To me, simple songs would have been enough. Hence, investing on the soundtrack did not seem to improve the game that much.
Besides, you can play against the CPU, go for different puzzles, and engage in the time-mode. With these modes available, it brings variety into the game.
As such, Lumines II is an excellent puzzle game. Although not an avid fan of puzzle games, this game offers immense pleasure, and is worth purchasing.