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.