I'm probably not the best person to play this game, as I have had very little to do with games made for Gameboy and such, oh well. That's one of the reasons why I won't rate it as low as I feel, others might enjoy it way more than I did.
Now that that's out of the way, I'd point out the good stuff first. The graphics are what you'd expect - not in the bad meaning of the word, quite the opposite actually. If there's one thing I think about when it comes to this kind of games made for older devices, it's definitely the lovable pixel graphics. It was one of the things that amazed me here as well, as the tiles are very clean and they do their job perfectly.
Sadly I'm afraid that's all that's really worth mentioning when it comes to the good parts. The music basically gave me a headache - true, it's kind just of how it often is for those types of devices, but there is still a ton of music like that I will actually enjoy - and that's just not one of those. To be fair, at this point I'd rather have it completely silent, during some parts it's just unpleasant to listen to, there's too much noise fit in one place, at least for me.
I've heard that's kind of how the older games often were, but throwing me into a world just like that and expecting me to find something placed I-don't-even-know-where isn't the greatest idea (at least given what people right now are used to, like I said, I'd imagine it'd be nothing out of ordinary back in the day).
Overall, I wasn't really interested at all, and I quit rather quickly, but there's a fair chance that it's SIMPLY not my environment. Regardless of everything, I see you definitely put a lot of work into this, so good work! I hope other people will enjoy it more!