I haven't had a chance to look through the game properly, but I do have a small bit of constructive feedback on the layout:
I would recommend that you align the text Left. Centered text looks kind of messy unless it's done for a particular reason, and can lead to issues with readability. Titles look fine centered, though.
I'd also recommend you remove the white border from around the text, and instead either lighten the background, or add a big light box over the entire page.