Yaaaay! I finally found a really good copy of 'TaleSpin' for Sega Genesis, along with a Genesis emulator, so you can download the game and play it right now on your PC! Here are the files's you'll need and instructions:

1. Create a new folder, call it whatever you like.
2. Download both of the following files:
   

   Fusion34.rar

   (Fusion34 is a Sega emulator (a really good one!), which will allow to to play the game on your PC)
   

   TaleSpin.bin

   (This is the actual Talespin for Sega Genesis game file)
3. Extract the contents of the emulator to your new folder.
   

   Use WinRar or someother decompressing program

4. Once extracted, open the folder and run the file fusion.exe'
5. A screen of static will come up. Click "File", then "Load Genesis/32X Rom".
6. Select the "TaleSpin.bin" file.
7. All done! Enjoy :)
8. Note - I recommed that you set the player 1 controls before you begin playing. Click "Options" then "Set Config". Click the "Controllers tab". Under "Port 1" and "Use" choose what type of control you want to use (keyboard, gamepad, etc) then click "define" and follw the promps. Do the same for "Port 2" If you want to play 2 player.