As others have stated you can make the Platform Category view look exactly like your mockup, though it uses the same view for all the items selected after the fact (like selecting consoles would open to the list of platforms and would look the exact same). You can write plugins to potentially help with that though. The reason something like your mockup isn't implemented is because very few people want to deal with the extra key presses and it just doesn't look all that great on an arcade cab when people walk past and see a generic welcome screen. Most users would prefer something that attracts the user TO the cab like a gameplay video or something similar to how original cabs had attract modes that made you go, "OH look at that!" and come over to it.