Gyrostarr

[sfried]

http://wii.ign.com/articles/868/868645p1.html

Introducing Gyrostarr, the company's first WiiWare game. It's a four-player compatible "sci-fi shooter" designed from the ground up for Nintendo's download service and as you'll see in our exclusive video trailer below, it already looks better than many retail Wii titles. High Voltage's 3D engine procedurally generates the space track that you'll whiz through in your spaceship – or in other words, the fractal-like geometry and particle effects you see whirring around in the background are being created dynamically. The result is that the title includes 50 levels of space track in a file size smaller than 40 megabytes.
...
As with any shooter, the accumulation of points is just as important as playing through the selection of levels and High Voltage has included a multiplier system based on skill. Points multiply and accumulate when you avoid enemy fire (in addition to shooting down foes, obviously), and there are bonuses which will be awarded when you accomplish "intra-level achievements."

Gyrostarr seems to run in both 480p and 16:9 widescreen modes and features an electronica-influenced soundtrack that is well matched to the on-screen action. The WiiWare launch title will cost 700 Wii Points ($7)

So, a Tempest/Tourus Trooper WiiWare game.

[nZero]

dave4shmups beat you to it, sorry