Cool game, has a lot of potential. Only criticisms are the text boxes and collision. The text as it stands right now is very big in such a small box, you could try making it less wordy. I ended up skipping the second half of the conversation at the start as it drug on a bit.
This is a limitation of the default text mechanic in the GB Studio engine, I do plan on making a smaller font and having the text boxes be smaller. The text boxes borrow a good chunk of the VRAM in the Gameboy so its going to be worth it in the long run, even if just to be able to squeeze out a few more pixels for sprites and backgrounds. I do want to keep the dialog, but i might space it out a bit so its not just a text wall when you start the game. Also plan on adding a skip dialog button!