Nicalis, the company that ported/remade Cave Story for Wiiware is giving away two copies a day ending Friday March 26th. Check their blog for more info.
http://www.nicalis.com/blog/2010/03/21/want-a-free-cave-story-add-us-on-twitter-nicalis/
Normally, a Wiiware version of Cave Story goes for 1,200 Wii points ($12).
If that's a bit out of your budget, Pixel has promised to continue giving away the original version for free.
http://www.miraigamer.net/cavestory/downloads_1.php
Enjoy.
