A fact sheet for the WiiWare version of Cave Story was posted on the Kombo.com web site today. The summary is as follows:

- offers standard definition and Wii-exclusive progressive (480p) graphics
- 4:3 and 16:9 resolution support
- new character designs by creator/designer, Daisuke Amaya (Pixel)
- 10 unique weapons to find and upgrade
- Over 20 boss battles through Mimiga Island
- 15 levels to explore in the vast world
- Classic Controller support
- Three unique endings
- WiiWare version developed by Nicalis

Cave Story Wii official site