I downloaded this yesterday, practically held at gunpoint by the pseudo-missus. Basically, it's Tetris--you know what to expect. But after playing for several hours, you can readily tell it was developed by Hudson, if you know what I mean. The core gameplay is mostly solid, but the overall package isn't as refined as it could (should) be. There's just a number of stupid things that could've (should've) been ironed out, and you just know would've been ironed out had this been a first-party release. I only played the multiplayer, classic Tetris game, as frankly I have no interest in any of the extra modes. I signed up for Tetris and that's it, dammit.
These will all sound like nitpicks, but they all add up to a lack of polish that really knocks this game down a couple notches, in my opinion. I'm using WiiWare Dr. Mario as my standard here.
-First of all, the menus are stupid. There's a half-dozen submenus standing between you and starting a game, and they're not always intuitive. You can't just start a game and pick Miis--every Mii you want to play with needs to have its own data file created. This means that if you're playing with three new people, you need to create a data file for the first Mii, which sends you to the main mode-selection with that Mii as player one, meaning that you have to then exit out of that menu and go back to the data creation menu. Repeat times three. It's nice to keep stats for everyone, but surely this could've been simplified.
-The music is mostly terrible. The music selection system is stupid, too--press "-" to hear a sample of it, but don't press "2," which will select it without hearing it AND send you out of the music menu. Annoying.
-Playing with two players is fine, but with three or more, be prepared to squint. For some reason, the game squeezes all three boards into the middle of the screen, basically within the 4:3 portion of your display. Meanwhile, the sides of the screen--each of which could easily fit one of these squeezed boards apiece--is wasted with either idle nothingness or distracting background animation like falling snow or some crap (your choice). Whee! I should not have to squint playing eight feet from a 46" HDTV.
-Mii integration is lacking. I'm sorry, but having your Miis dressed as doctors--and thus being given license to make awful doctor-related jokes/jabs toward your opponent--is half the fun in Dr. Mario. If Tetris is going to waste so much of the screen in multiplayer anyway, would it KILL them to put my Mii in a Russian hat on the side, maybe doing a little dance? Think of the mildly offensive jokes that will now never be made.
-Maybe I'm old-school, but when a piece lands, it LANDS, and that's it. None of this "let you keep spinning it in place for a while before it REALLY lands" crap.
-Multiplayer could use some more options. The game seemingly never speeds up no matter how long the match continues. When playing with at least three, scoring a Tetris will send penalty lines to another player randomly--which is all well and good, but after several straight hours of playing, I can tell you without a shadow of a doubt that Player 1 will be getting the majority of the penalty pieces. My friends and I all switched off, and we agreed--Player 1 is likely to get the shaft, at least early on. That means if you're Player 1 and you fill half your screen, often a couple quick Tetrises from your friends will mean an abrupt game over for you.
-On the plus side, the items are more fun than I thought they would be, adding a fun, random, chaotic element to matches. The "fast drop" item might be a little overpowered, particularly if used in combination with the "no piece rotating" item. Think of it as a blue shell in Mario Kart, except it kills you immediatley and you lose the race forever.
-I might be imagining this, but I SWEAR the piece distribution is flawed. I seem to get a lot of "zigzag" pieces, but very few L-pieces. The prized long piece is basically a mythical creature in this game.
Anyway, despite the way-too-long list of nitpicks above...the game is fun enough in multiplayer, and I'm happy to have a version of Tetris easily, immediately playable from my Wii Menu. But it's lacking so much polish to the point that, instead of being the definitive version of Tetris, it's merely "the Tetris we have for Wii."