It's odd. Gameloft should really annoy us as the company has been releasing its mobile phone games on WiiWare like nobody's business.
The difference is though, while usually we'd accuse Gameloft of money-making, its WiiWare games are actually good. First TV Show King, then Block Breaker Deluxe, then Wild West Guns... all decent games. And now Midnight Pool is here and it's fun too.
The controls are slightly confusing and take five minutes or so to get used to, but once you've got to grips with things you'll soon find that it's a nice little pool game. Whether it's worth buying really depends on whether you'll have a mate to play it with though, because if you're half-decent you'll have completed the game's single-player Story Mode within about an hour and half, and there's no online multiplayer (which would have made this essential).
For the price of a SNES game, you could do much worse.