I would say its about 45% complete.

- There are 2 of the 5 play modes
- There are 2 of the 6 courses ( devil's elbow and woodchuck ridge)
- There are 3 of the 6 characters (katana,tokomo and tamara)

- The cartridge has the following information written on it.

- x-stream 6/15/99
- india (the country or a womans name
- test module

- The game engine

I would say the game engine is 100%
What all the previews in old game magazines say is true. The water is the best aspect of the game and way better then in wave race.
The water has different colors from dark to very light and its not random but the colors change when water is deeper for exsample.
The water flow is also great you can feel difference near waterfalls or multiple streams.
The characters feel great in controls and can rotate 360 degrees. They won't get stuck and no buggy camera etc.
The controls are funny btw you really have to paddle by moving left and right.
But the game won't play without a expansion pack.

It seems that wild waters has been released.