WiiColEm is a port of the ColEm ColecoVision emulator v2.5.2 developed by Marat Fayzullin.

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Features:
Support for driving, roller, and super action controllers
Tilt-based (Wiimote) driving support
Cartridge database w/ recommended controller settings and keypad descriptions for most commercial cartridges
Per-cartridge button mappings
On-screen keypad display
High cartridge compatibility (see below)

The following additions/modifications were made to the core emulation code:
“The Heist” now works correctly (memory initialization bug).
Added support for Opcode RAM expansion.
Added support for “Lord of the Dungeon” (original 32k or trimmed 24k).
Mode 2 masking now works correctly (supports Daniel Bienvenu games).
Mode 0 and Mode 3 now work correctly (“Cabbage Patch Kids Picture Show” and “Smurf: Paint ‘n Play Workshop” now work correctly).
Fixed graphic corruption that would occur when switching between games (VRAM and related state were not being reset correctly).
Fixed save/load state bug where the emulator would incorrectly report that the save was invalid (memory was not being cleared correctly).
Fixed issue where noise channel wasn’t starting when it should (Matt Patrol).

http://wiibrew.org/wiki/WiiColEm