Personally, I think that a bit of simplification might be in order. A lot of tracks don't neatly fit into any genre and a lot of genres are pedantic labels rather than actual musical movements. A more concise and less contentious set of genres might be more useful to newcomers and less irritating to cratediggers. Learning the difference between Chicago house and Balearic house is very valuable if you're just starting to explore dance music, but I'm not sure there a useful delineation between Euro trance, classic trance, progressive trance and epic trance.
Also, a tracklisting at the end of the game would be very useful.
Really? I've seen that term used for quite a long time, since the late 90s at least. Sometimes I see the variations "hardcore rave", "UK rave", "oldschool UK hardcore".
I don't know if folks in the early UK rave scene actually called it "breakbeat hardcore" in the early 90s, but it's a relatively common term for that genre in my experience. Granted, it's been 25 years since the genre was regularly encountered, so it's more of a historical/throwback thing at this point :)