Whitecroc: Cave Story will be released sometime in the next two weeks. Get that!
Haven't tried the Wii version of World of Goo, but the PC version is awesome. I read that the WiiWare version is ranked higher on Metascore, though.
Arkose: Note that the PC version of Cave Story is free. The WiiWare version has enhanced graphics but not everyone will consider that worth paying for.
The WiiWare version of World of Goo rated higher because standards are much higher on the PC. This is also why games on both 360/PS3 and PC get lower scores on the PC even if it's an excellent port--PC gamers simply expect more.
There is alot more additions to the Wiiware release.
"Cave Story Wii Features:
- Standard definition and Wii-exclusive progressive (480p) graphics
- New character designs by creator, Daisuke Amaya
- Completely redrawn background and interface, exclusive to Wii
- Remastered music as well as the original soundtrack
- Mix-and-match new/old artwork and music!
- Five new play modes (including Sanctuary Time Attack and Boss Rush)
- Three-save files, as demanded by fans
- Over 20 epic boss battles through Mimiga Island
- 15 levels to explore in the vast world
- 10 unique weapons to find and upgrade
- Classic Controller compatibility
- Three unique endings
- A few surprises fans"
They are also working on la-mulana.
The phoenix wright games are also good.