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I dont have all the stuff needed for bootcamp

I tried it out with my base model 2012 base model 13" with the 8GB ram upgrade. I ran Arkham Asylum through Parallels and Windows 8. It was okay, there was a bit of lag in scenes with a lot of detail, but it was playable.
I also feel like those issues were a result of Windows 8 compatibility, and not just mba hardware itself, so I'd say yeah you can do some light gaming through Parallels on low settings. But I wouldn't count on being able to run Borderlands 2 flawlessly.
 
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