remake of the Super Nintendo
classic puzzle game Tetris Attack
The games are strikingly similar, with very little changed besides the substitution of the Pokemon characters in the place of Super Mario Bros./Yoshi's Island characters.
There is, however, a slight change in the speed at which the blocks on top fall after you've cleared the ones below them. This split-second additional delay makes it suprisingly easier to move blocks in and out to set up chain combos.
Overall, the difficulty level at the high-end has been raised a notch, but basically as long as you like addictive, fast puzzle games, and don't hate the Pokemon franchise with a rabid passion, you're in for some fun.