i've gotten the charcoal/black egg before and lost the chao somewhere between then and now, and was wondering if there is any possible way to get it and the other secret eggs again? any way at all?

If you want to get the eggs again, you make a new Adventure file.

If you need help finding them again, click here for my guide on Mono-Tone Chao that explains where the In-Game Mono-Tone Black Egg is and click here for my guide on Jewel Chao that explains where the In-Game Silver Egg and Gold Egg is.

Thanks again crazo; you're always on top of these forums