Meteos on the DS. It's a sci-fi themes Tetris Attack game developed by Mashpotato Samurai himself. Each of the different planets all have different effects on the blocks. Some have low gravity or move with water physics, some have wells as wide as the screen, and other effects. Blocks don't spawn from the bottom row like in traditional TA games, but fall from the top, and they don't disappear once they're matched, and instead propel upward and out the top of the screen, and matching more as they shoot up pushes them faster.
The story mode has branching paths that unlock different content for purchase upon completion, which you can buy with the blocks you've launched during play. Content includes The different planets in free play, the music and sounds in the sound test, and other stuff I can't remember. Most of the music is sequenced loops that change given your performance, but the main menu and end credits songs are traditionally composed, and brilliant. I would absolutely love to hear a fully-fleged orchestral arrangement of these tracks.
Meteos is a great little game with way more on offer than it has any right to have, Sakurai did an excellent job with this one.