WiiMednafen v0.1 is released. WiiMednafen is a Wii port of the Mednafen emulator. To install WiiMednafen, extract the zip file directly to your SD card or USB device (retain the hierarchical structure exactly). Game ROMs and CD images can be loaded via SD, USB, and SMB (Network).

Emulators supported:
- GameBoy/GameBoy Color
- GameBoy Advance
- Game Gear
- Lynx
- Nintendo Entertainment System (NES)
- Neo Geo Pocket
- PC Engine (CD)/TurboGrafx 16 (CD)/SuperGrafx (Fast version)
- PC-FX
- Sega Master System
- Virtual Boy
- WonderSwan

WiiMednafen v0.1 Changelog:
- Added support for MegaDrive/Genesis.
- Added rewind support for the following emulators:
* GameBoy/GameBoy Color
* Game Gear
* Lynx
* Nintendo Entertainment System (excludes FDS games)
* Neo Geo Pocket
* PC Engine/TurboGrafx 16 (excludes CD games)
* Sega Master System
* WonderSwan (excludes large SRAM sizes: Dicing Knight, Judgment Silversword)
- VI + GX scaler (eliminates majority of scaling artifacts).
- Default screen sizes per emulator (1x, 2x, Full, etc.).
- Full widescreen support
- 16:9 correction option (displays 4:3 on widescreen displays).
- Double strike (240p) mode support (can be enabled globally and per-emulator). By default, is explicitly disabled for handheld emulators.
- Color trap filter (Eke-eke implementation)
- Master system FM sound support (when region set to Domestic/Japan)
- Virtual Boy SRAM bug fix (was not being persisted).
- Fixed bug where screen sizing controls were not being properly rotated (games with vertical orientation).
- Ability to map "rotate screen" button for WonderSwan (Klonoa, etc.).
- WonderSwan control mappings now supports "profile" toggle. Allows for saving mappings for both orientations for a single game (Klonoa, etc.).
- Updated Game Gear to display with proper aspect ratio.
- Ability to set Volume globally and per-emulator.
- Additional SMS/GG compatibility
- Fixed bug that prevented certain Ogg Vorbis files (multiples of 1024, go figure) from loading as part of a CD image (CUE sheet).
- Fixed bug that prevented some FDS games (Metroid) from properly flipping the disk.

Download: WiiMednafen v0.1
Source:Here