A virtual machine is not meant for gaming. The performance of a VM is too weak to be able to play games on it. You will never be able to run a recent game in a VM.
However, to make the game work, you could set up a dual-boot-system (Mac OS X and Windows 8 on one computer).
Once you have set it up successfully, you can boot into Windows 8 and run the game from there, if your hardware specifications are enough.
On a Mac, you could for instance use Boot Camp for that. You will have to shrink your Mac OS partition, create a new partition from the new free space on your hard drive and install Windows 8 on the new partition.
By the way, you have not posted your graphic card. You have to make sure that it meets the minimum system requirements (or just post it here).
Thanks danielr13g27,
I've been able to run other games (NFS Pro Street, Madden and NHL 07, and CivIII) through parallels so I'm hoping I can get NFSMW2 to work as well.
My graphics card is an AMD Radeon HD 6750M 1024 MB.
That's interesting, I have never thought that playing games in a VM would be possible...
I don't know much about Parallels (I prefer to use VMware Workstation), but as far as I know Parallels is only able to emulate 256 MB of VRAM which is definitely not enough for such a graphically demanding game like NFSMW2. That would be a possible reason for the white screen.
The best way to go is really a dual-boot-system. You should at least be able to run with medium graphic settings, I would even say that you can set some of them on the highest setting. But disable supersampling and leave ambient occlusion on medium.
However, OS X v10.8.3 would be needed for Boot Camp 5, and Boot Camp 5 is needed for dual-boot-compatibility with Windows 8...
Here are some links:
Boot Camp 5 FAQ: https://support.apple.com/kb/HT5639
Boot Camp and Windows 8 FAQ: https://support.apple.com/kb/HT5628
Discussion: Dual-Boot Windows 8 and Mac OS X Lion v10.7.5: https://discussions.apple.com/thread/4983434?start=0&tstart=0
In Lion, Boot Camp does not seem to support Windows 8 (to my surprise, because Windows 8 uses the same bootloader as Vista and Windows 7 so it should be no problem to support Windows 8 as well. Alternatively, you could just install a trial version of windows 7 and upgrade to windows 8...)
