They made a game for WiiWare, but because Nintendo has a sales threshold, they haven't gotten any money from it. (Icon and Sanuk have run into this issue, though in both cases they eventually got it)
So what they are doing to get the money from the sales so far is to give away enough copies of the game to reach the threshold (basically by buying people a free copy), which means they can then get what Nintendo owes them.
We have already got more than 400 requests, therefore 400 more requests are needed. Once we get these, we’ll start distributing the game! Share this news with your friends, as many as you can, and you will get the game sooner!
I want to remember you the rules:
1.You must live in North or South America.
2.You need to leave your Wii number in comments or send it to email@example.com
3. You need to add our Wii number to your Wii friends list. Our Wii number is 3250 2338 2896 1958.
And then once we’ll have 800 resquests, you’ll get the game as a gift.
Our Wii number is 3250 2338 2896 1958
While I didn't like the PSP version very much, it would presumably be better on the Wii since you use the waggle stick to aim, instead of the PSP's nub.