I just wanted to update you guys and let you know I got the copy of Cubic Ninja ($22 after my power-up rewards card!) and homebrew is running FLAWLESSLY on it. It took me less than 5 minutes to get it all setup. It was a loooot easier than I thought it'd be. Thank you for everybody that replied and helped me out big time.
It was actually pretty funny. Like I said, the town that had the game was 1 hour and 25 minutes away. I called while I was at work to see if it was available, and then I went online a few minutes later to reserve the copy so that no one else would buy it before I got off work (even though I'm, like, positive no one in the area hacks or that deal would have long since been swooped up). When I got there they were asking me what I needed and when I told them they were all "You're the ninja chick! Okay, we were wondering what was taking so long!" Lol. Just thought that was something funny to share.
Also: I got a US version of the game, but like Pandaxclone2 said, since my system is US it worked just fine.