As far as the game corner goes, there's the slot machines script I fixed up, and almost the voltorb flip minigame (i'll have to add in keyboard support as well, since it's currently a touch system only). I think there was a roulette game of some kind, but I don't have much desire to mess with it (and I can't see that it was very popular). Other than that, there was just buying coins (easily evented, since support for coins is built in), and exchanging coins for prizes (also fairly easy I believe).
On another note, wouldn't it be appropriate to add footprint support to Essentials? The pokedex scene has the obvious spot for it still, but the prints themselves are MIA. I managed to add them today to what I've been working on, so how would I go about adding it to the kit? Just upload it with the change alongside the other versions of Essentials? Or replace the one that's on the wiki?