Lavalit have released a new version of Openbor for the Wii:
Fixes:
Plombo: Fixed (another) menu selection issue with the Classic Controller in the Wii port, as described by NickyP.
Plombo: Added support for Classic Controller and GameCube controller analog sticks in the Wii port.
Plombo: Added button mappings on GC and Classic Controller for Attack 3 and 4.
Plombo: Fixed case-sensitivity issue when loading mods from the data folder on Linux. Expect a Neo Edit Pack release for Linux soon!