Well, I cleaned the cart as best as I could (super shiny contacts), and even though it "boots", when I choose a race, and after the character appears and talks (like Natasha), the game hangs. I've tried with other races, and the same thing occurs.
The cart is not in bad condition, but very nice.
I tested the game using a GBA and a GBP (Game Boy Player). Both are the same.
Could it be that the game is not compatible with these units? I can't find my original GB. So if anyone has the game and can verify if it works with their GB or GBP unit, I would gladly appreciate it.
BTW, it's NTSC.
Thanks!