Can no longer access game

Are these the steps you tried?

Copy or move multiple items using the Transfer Content option

You can use the Transfer Content option to move multiple items between storage devices. Here's how.

Notes

• The Xbox Dashboard is not available during content transfer.
• If the content transfer is interrupted for any reason, the content remains on the source storage device, and you can restart the content transfer process at any time.
  
• If you’ve purchased a new Xbox 360 console, you can use the Transfer Content option and the Xbox 360 Hard Drive Transfer Cable to move your Xbox 360 content to your new console. For more information, see
  
  Use the Xbox 360 Hard Drive Transfer Cable.

1. From Xbox Home, go to settings, and then select System.
   
2. Select Storage.
3. Highlight the storage device that contains the content you want to transfer, and then press
   Y for Device Options.
4. Select Transfer Content.

I have no idea. He did it this morning while I was busy with other things. I'll ask.

Are these the steps you tried?

Copy or move multiple items using the Transfer Content option

You can use the Transfer Content option to move multiple items between storage devices. Here's how.

Notes

• The Xbox Dashboard is not available during content transfer.
• If the content transfer is interrupted for any reason, the content remains on the source storage device, and you can restart the content transfer process at any time.
  
• If you’ve purchased a new Xbox 360 console, you can use the Transfer Content option and the Xbox 360 Hard Drive Transfer Cable to move your Xbox 360 content to your new console. For more information, see
  
  Use the Xbox 360 Hard Drive Transfer Cable.

1. From Xbox Home, go to settings, and then select System.
   
2. Select Storage.
3. Highlight the storage device that contains the content you want to transfer, and then press
   Y for Device Options.
4. Select Transfer Content.

As stated by other ambassadors you will need to perform a license transfer to your new console then click to redownload the games again. This will put a new digital license on the console allowing all users access as before

Yeah, you have to redownload it after the transfer to redownload the license. Since it's already on the harddrive, it should just download the license which will be quicker.

And you redownloaded the game after the transfer?

My husband just said no, he did it before the transfer. I'll have him redownload. If it works, I'll let you know, if not, I'll let you know that too. It'll be about an hour or so...