The Major Scale game for the Keyboard has some improper/weird, and unnecessary enharmonic key names. It shows you major keys with every possible natural or sharp root note (no flats), instead of the circle of fifths key names that are all readable and commonly used. So you get awkward, very difficult questions. For example, pick every note in the key of G# major… This really should be Ab major. I’m not saying you should necessarily remove these enharmonic sharp keys. But they are for the most part impractical, hard to spell properly, and hard to read in sheet music notation. Perhaps keep them for niche interest though.